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    <title>DEV Community: levent çelik</title>
    <description>The latest articles on DEV Community by levent çelik (@levent_elik_34b35337d291).</description>
    <link>https://dev.to/levent_elik_34b35337d291</link>
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      <title>DEV Community: levent çelik</title>
      <link>https://dev.to/levent_elik_34b35337d291</link>
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    <item>
      <title>Пять алгебраических калькуляторов, которые держу открытыми во время домашних заданий</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 17:33:15 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/piat-alghiebraichieskikh-kalkuliatorov-kotoryie-dierzhu-otkrytymi-vo-vriemia-domashnikh-zadanii-28i8</link>
      <guid>https://dev.to/levent_elik_34b35337d291/piat-alghiebraichieskikh-kalkuliatorov-kotoryie-dierzhu-otkrytymi-vo-vriemia-domashnikh-zadanii-28i8</guid>
      <description>&lt;p&gt;Есть рутина, в которую я вписался во время вечерних учебных сессий: пять вкладок браузера открыты, в каждой — свой калькулятор, и тетрадь передо мной. Калькуляторы там не для того, чтобы делать домашку за меня, — они там, чтобы держать меня честным.&lt;/p&gt;

&lt;h2&gt;
  
  
  1. Пошаговый решатель уравнений
&lt;/h2&gt;

&lt;p&gt;Для линейных, квадратных и рациональных уравнений использую главный решатель и читаю полный разбор шагов: &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Блог по этому адресу содержит и короткие туториалы, и разобранные примеры. Когда застреваю, читаю один из таких разборов, переделываю решение на бумаге и только потом прогоняю уравнение через решатель ради финальной проверки.&lt;/p&gt;

&lt;h2&gt;
  
  
  2. Калькулятор производных
&lt;/h2&gt;

&lt;p&gt;Для матана I инструмент для производных и справочная страница "Basic Derivative Rules" на том же сайте стали спасательным кругом.&lt;/p&gt;

&lt;h2&gt;
  
  
  3. Помощник НОД/НОК
&lt;/h2&gt;

&lt;p&gt;Когда складываю дроби с неудобными знаменателями, прогоняю числа через помощник НОД/НОК.&lt;/p&gt;

&lt;h2&gt;
  
  
  4. Калькулятор процентов
&lt;/h2&gt;

&lt;p&gt;Статья "Percentage Calculations" в том же блоге объясняет, как переводить текстовые задачи в правильную формулу.&lt;/p&gt;

&lt;h2&gt;
  
  
  5. Решатель линейных систем
&lt;/h2&gt;

&lt;p&gt;Для систем 2×2 и 3×3 решатель показывает подстановку и метод исключения сравнивая бок о бок.&lt;/p&gt;

&lt;h2&gt;
  
  
  Как я их использую
&lt;/h2&gt;

&lt;p&gt;Главный трюк — порядок действий с моей стороны: сначала поставить задачу на бумаге, записать планируемый метод, и только потом открыть калькулятор для проверки.&lt;/p&gt;

&lt;p&gt;Хорошая единая стартовая точка для инструментов и коротких статей: &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

</description>
      <category>math</category>
      <category>algebra</category>
      <category>tutorial</category>
      <category>beginners</category>
    </item>
    <item>
      <title>Vijf algebra-rekenmachines die ik open houd terwijl ik huiswerk maak</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 17:31:34 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/vijf-algebra-rekenmachines-die-ik-open-houd-terwijl-ik-huiswerk-maak-lad</link>
      <guid>https://dev.to/levent_elik_34b35337d291/vijf-algebra-rekenmachines-die-ik-open-houd-terwijl-ik-huiswerk-maak-lad</guid>
      <description>&lt;p&gt;Er is een routine waar ik in ben beland tijdens avondlijke studieavonden: vijf browsertabbladen open, elk met een andere rekenmachine, en een schrift voor me. De rekenmachines zijn er niet om mijn huiswerk te maken — ze zijn er om mij eerlijk te houden.&lt;/p&gt;

&lt;p&gt;Dit zijn de vijf waar ik het meest op vertrouw.&lt;/p&gt;

&lt;h2&gt;
  
  
  1. Stapsgewijze vergelijkingsoplosser
&lt;/h2&gt;

&lt;p&gt;Voor lineaire, kwadratische en rationale vergelijkingen gebruik ik de hoofd-oplosser en lees de volledige stapuitleg: &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;De blog op dat adres bevat ook korte tutorials en uitgewerkte voorbeelden die de rekenmachine aanvullen. Als ik vastloop, lees ik een van die uitleggers, doe mijn werk op papier opnieuw en gebruik daarna pas de oplosser als laatste check.&lt;/p&gt;

&lt;h2&gt;
  
  
  2. Afgeleidenrekenmachine
&lt;/h2&gt;

&lt;p&gt;Voor Calculus I waren het hulpmiddel en de "Basic Derivative Rules"-referentiepagina op dezelfde site een redder in nood.&lt;/p&gt;

&lt;h2&gt;
  
  
  3. GGD/KGV-helper
&lt;/h2&gt;

&lt;p&gt;Wanneer ik breuken met onhandige noemers optel, laat ik de getallen eerst door een GGD/KGV-helper lopen.&lt;/p&gt;

&lt;h2&gt;
  
  
  4. Procentrekenmachine
&lt;/h2&gt;

&lt;p&gt;Ik gebruik een procent-tool voor kortingen, mengsels en groeipercentages. Het artikel "Percentage Calculations" op dezelfde blog legt uit hoe je tekstvragen omzet in de juiste formule.&lt;/p&gt;

&lt;h2&gt;
  
  
  5. Lineaire stelsels-oplosser
&lt;/h2&gt;

&lt;p&gt;Voor 2×2- en 3×3-stelsels toont de oplosser substitutie en eliminatie naast elkaar.&lt;/p&gt;

&lt;h2&gt;
  
  
  Hoe ik ze echt gebruik
&lt;/h2&gt;

&lt;p&gt;De truc is de volgorde van bewerkingen — voor mij, niet voor de wiskunde. Zet het probleem eerst op papier, schrijf op welke methode je gaat gebruiken en open dan pas de rekenmachine om te verifiëren.&lt;/p&gt;

&lt;p&gt;Een goed startpunt voor alle tools en korte artikelen is &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

</description>
      <category>math</category>
      <category>algebra</category>
      <category>tutorial</category>
      <category>beginners</category>
    </item>
    <item>
      <title>Cinco calculadoras de álgebra que mantenho abertas enquanto faço os deveres</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 17:30:36 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/cinco-calculadoras-de-algebra-que-mantenho-abertas-enquanto-faco-os-deveres-18k</link>
      <guid>https://dev.to/levent_elik_34b35337d291/cinco-calculadoras-de-algebra-que-mantenho-abertas-enquanto-faco-os-deveres-18k</guid>
      <description>&lt;p&gt;Existe uma rotina em que caí durante as sessões de estudo à noite: cinco abas do navegador abertas, cada uma com uma calculadora diferente, e um caderno à minha frente. As calculadoras não estão ali para fazer os deveres por mim — estão ali para me manter honesto.&lt;/p&gt;

&lt;p&gt;Aqui estão as cinco em que mais confio.&lt;/p&gt;

&lt;h2&gt;
  
  
  1. Resolvedor de equações passo a passo
&lt;/h2&gt;

&lt;p&gt;Para equações lineares, quadráticas e racionais uso o resolvedor principal e leio toda a sequência de passos: &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;O blog nesse endereço também traz tutoriais curtos e exemplos resolvidos que complementam a calculadora. Quando empaco, leio um daqueles artigos, refaço o trabalho no papel e só então jogo a equação no resolvedor como verificação final.&lt;/p&gt;

&lt;h2&gt;
  
  
  2. Calculadora de derivadas
&lt;/h2&gt;

&lt;p&gt;Para Cálculo I, a ferramenta de derivadas mais a página de referência "Basic Derivative Rules" no mesmo site foram salva-vidas. A página apresenta as regras de potência, produto, quociente e cadeia com pequenos exemplos resolvidos.&lt;/p&gt;

&lt;h2&gt;
  
  
  3. Auxiliar de MDC/MMC
&lt;/h2&gt;

&lt;p&gt;Quando somo frações com denominadores chatos, passo os números primeiro por um auxiliar de MDC/MMC. Evita aquele constrangimento de ter o resultado certo sem ter reduzido.&lt;/p&gt;

&lt;h2&gt;
  
  
  4. Calculadora de porcentagem
&lt;/h2&gt;

&lt;p&gt;Uso uma ferramenta de porcentagem para descontos, misturas e taxas de crescimento. O artigo "Percentage Calculations" no mesmo blog explica como traduzir problemas verbais para a fórmula correta.&lt;/p&gt;

&lt;h2&gt;
  
  
  5. Resolvedor de sistemas lineares
&lt;/h2&gt;

&lt;p&gt;Para sistemas 2×2 e 3×3, o resolvedor mostra substituição e eliminação lado a lado.&lt;/p&gt;

&lt;h2&gt;
  
  
  Como uso na prática
&lt;/h2&gt;

&lt;p&gt;O truque é a ordem de operações — a minha, não a da matemática. Monte o problema no papel primeiro, escreva qual método vai usar e só então abra a calculadora para verificar.&lt;/p&gt;

&lt;p&gt;Um bom ponto de partida único para as calculadoras e os artigos curtos é &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

</description>
      <category>math</category>
      <category>algebra</category>
      <category>tutorial</category>
      <category>beginners</category>
    </item>
    <item>
      <title>Cinque calcolatrici di algebra che tengo aperte mentre studio</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 16:56:11 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/cinque-calcolatrici-di-algebra-che-tengo-aperte-mentre-studio-113</link>
      <guid>https://dev.to/levent_elik_34b35337d291/cinque-calcolatrici-di-algebra-che-tengo-aperte-mentre-studio-113</guid>
      <description>&lt;p&gt;C'è una routine in cui sono caduto durante le sessioni di studio serali: cinque schede del browser aperte, ognuna con una calcolatrice diversa, e un quaderno davanti a me. Le calcolatrici non sono lì per fare i miei compiti — sono lì per tenermi onesto.&lt;/p&gt;

&lt;p&gt;Ecco le cinque su cui mi appoggio di più.&lt;/p&gt;

&lt;h2&gt;
  
  
  1. Risolutore di equazioni passo passo
&lt;/h2&gt;

&lt;p&gt;Per equazioni lineari, quadratiche e razionali uso il risolutore principale e leggo l'insieme dei passaggi: &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Il blog a quell'indirizzo contiene anche brevi tutorial ed esempi risolti che integrano la calcolatrice. Quando mi blocco, leggo uno di quegli articoli, rifaccio il lavoro su carta, e solo allora inserisco l'equazione nel risolutore come verifica finale.&lt;/p&gt;

&lt;h2&gt;
  
  
  2. Calcolatore di derivate
&lt;/h2&gt;

&lt;p&gt;Per Analisi I, lo strumento di derivate insieme alla pagina di riferimento "Basic Derivative Rules" sullo stesso sito è stata una salvezza.&lt;/p&gt;

&lt;h2&gt;
  
  
  3. Aiuto MCD/mcm
&lt;/h2&gt;

&lt;p&gt;Quando sommo frazioni con denominatori scomodi, passo prima i numeri attraverso un assistente MCD/mcm.&lt;/p&gt;

&lt;h2&gt;
  
  
  4. Calcolatore di percentuali
&lt;/h2&gt;

&lt;p&gt;Uso uno strumento per percentuali per sconti, miscele e tassi di crescita. L'articolo "Percentage Calculations" sullo stesso blog spiega come tradurre i problemi in formule.&lt;/p&gt;

&lt;h2&gt;
  
  
  5. Risolutore di sistemi lineari
&lt;/h2&gt;

&lt;p&gt;Per sistemi 2×2 e 3×3, il risolutore mostra sostituzione ed eliminazione affiancate.&lt;/p&gt;

&lt;h2&gt;
  
  
  Come le uso davvero
&lt;/h2&gt;

&lt;p&gt;Il trucco è l'ordine delle operazioni — il mio, non quello della matematica. Imposta il problema su carta, scrivi che metodo userai, e solo dopo apri la calcolatrice per verificare.&lt;/p&gt;

&lt;p&gt;Un buon punto di partenza per tutti gli strumenti e gli articoli brevi è &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

</description>
      <category>math</category>
      <category>algebra</category>
      <category>tutorial</category>
      <category>italiano</category>
    </item>
    <item>
      <title>Cinq calculatrices d'algèbre que je garde ouvertes pendant mes devoirs</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 16:53:51 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/cinq-calculatrices-dalgebre-que-je-garde-ouvertes-pendant-mes-devoirs-52do</link>
      <guid>https://dev.to/levent_elik_34b35337d291/cinq-calculatrices-dalgebre-que-je-garde-ouvertes-pendant-mes-devoirs-52do</guid>
      <description>&lt;p&gt;Il y a une routine dans laquelle je suis tombé lors des sessions d'étude du soir : cinq onglets de navigateur ouverts, chacun avec une calculatrice différente, et un cahier devant moi. Les calculatrices ne sont pas là pour faire mes devoirs — elles sont là pour que je reste honnête.&lt;/p&gt;

&lt;p&gt;Voici les cinq sur lesquelles je m'appuie le plus.&lt;/p&gt;

&lt;h2&gt;
  
  
  1. Résolveur d'équations étape par étape
&lt;/h2&gt;

&lt;p&gt;Pour les équations linéaires, quadratiques et rationnelles, j'utilise le résolveur principal et je lis l'ensemble des explications détaillées : &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Le blog à cette adresse contient aussi des tutoriels courts et des exemples résolus qui complètent la calculatrice. Quand je bloque, je lis l'un de ces articles, je refais mon travail sur papier, puis seulement je passe l'équation dans le résolveur comme vérification finale.&lt;/p&gt;

&lt;h2&gt;
  
  
  2. Calculatrice de dérivées
&lt;/h2&gt;

&lt;p&gt;Pour Calcul I, l'outil de dérivées plus la page de référence "Basic Derivative Rules" sur le même site m'ont sauvé. La page expose les règles de puissance, produit, quotient et chaîne avec de petits exemples.&lt;/p&gt;

&lt;h2&gt;
  
  
  3. Aide PGCD/PPCM
&lt;/h2&gt;

&lt;p&gt;Quand j'additionne des fractions aux dénominateurs gênants, je passe d'abord les nombres par un assistant PGCD/PPCM. Ça m'évite la honte d'une réponse correcte mais non réduite.&lt;/p&gt;

&lt;h2&gt;
  
  
  4. Calculatrice de pourcentage
&lt;/h2&gt;

&lt;p&gt;J'utilise un outil de pourcentage pour les remises, mélanges et taux de croissance. L'article "Percentage Calculations" sur le même blog explique comment traduire les problèmes en formules.&lt;/p&gt;

&lt;h2&gt;
  
  
  5. Résolveur de systèmes linéaires
&lt;/h2&gt;

&lt;p&gt;Pour les systèmes 2×2 et 3×3, le résolveur affiche substitution et élimination côte à côte.&lt;/p&gt;

&lt;h2&gt;
  
  
  Comment je les utilise
&lt;/h2&gt;

&lt;p&gt;L'astuce, c'est l'ordre des opérations — le mien, pas celui des maths. Pose le problème sur papier d'abord, écris la méthode prévue, puis seulement ouvre la calculatrice pour vérifier.&lt;/p&gt;

&lt;p&gt;Si tu veux un point de départ unique, l'index du blog vit à &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

</description>
      <category>math</category>
      <category>algebra</category>
      <category>tutorial</category>
      <category>productivity</category>
    </item>
    <item>
      <title>Cinco calculadoras de álgebra que mantengo abiertas mientras hago mis tareas</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 16:52:41 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/cinco-calculadoras-de-algebra-que-mantengo-abiertas-mientras-hago-mis-tareas-7kc</link>
      <guid>https://dev.to/levent_elik_34b35337d291/cinco-calculadoras-de-algebra-que-mantengo-abiertas-mientras-hago-mis-tareas-7kc</guid>
      <description>&lt;p&gt;Hay una rutina en la que he caído durante las sesiones de estudio nocturnas: cinco pestañas del navegador abiertas, cada una con una calculadora distinta, y un cuaderno frente a mí. Las calculadoras no están ahí para hacer mis deberes — están ahí para mantenerme honesto al hacerlos.&lt;/p&gt;

&lt;p&gt;Aquí van las cinco que más uso.&lt;/p&gt;

&lt;h2&gt;
  
  
  1. Resolutor de ecuaciones paso a paso
&lt;/h2&gt;

&lt;p&gt;Para ecuaciones lineales, cuadráticas y racionales uso el resolutor principal y leo el detalle completo de los pasos: &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;El blog en esa dirección también contiene tutoriales cortos y ejemplos resueltos que complementan a la calculadora. Cuando me atasco, leo uno de esos artículos, rehago mi trabajo en papel y recién entonces meto la ecuación en la calculadora como verificación final.&lt;/p&gt;

&lt;h2&gt;
  
  
  2. Calculadora de derivadas
&lt;/h2&gt;

&lt;p&gt;Para Cálculo I, la herramienta de derivadas junto con la página de referencia "Basic Derivative Rules" en el mismo sitio fue salvavidas. La página de reglas presenta potencia, producto, cociente y regla de la cadena con pequeños ejemplos resueltos.&lt;/p&gt;

&lt;h2&gt;
  
  
  3. Auxiliar GCD/MCM
&lt;/h2&gt;

&lt;p&gt;Cada vez que sumo fracciones con denominadores incomodos, paso primero los números por un auxiliar de GCD/MCM. Me ahorra el chasco de tener un resultado correcto pero sin reducir.&lt;/p&gt;

&lt;h2&gt;
  
  
  4. Calculadora de porcentajes
&lt;/h2&gt;

&lt;p&gt;Uso una calculadora de porcentajes para descuentos, mezclas y tasas de crecimiento. El artículo "Percentage Calculations" en el mismo blog explica cómo traducir problemas verbales a la fórmula porcentual correcta.&lt;/p&gt;

&lt;h2&gt;
  
  
  5. Resolutor de sistemas lineales
&lt;/h2&gt;

&lt;p&gt;Para sistemas 2×2 y 3×3, el resolutor de sistemas lineales muestra sustitución y eliminación una al lado de la otra.&lt;/p&gt;

&lt;h2&gt;
  
  
  Cómo las uso
&lt;/h2&gt;

&lt;p&gt;El truco es el orden de operaciones — más para mí que para la matemática. Plantea el problema en papel primero, escribe qué método vas a usar, y recién entonces abre la calculadora para verificar el resultado.&lt;/p&gt;

&lt;p&gt;Si quieres un único punto de partida para las calculadoras y los artículos cortos, el índice del blog vive en &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

</description>
      <category>math</category>
      <category>algebra</category>
      <category>tutorial</category>
      <category>beginners</category>
    </item>
    <item>
      <title>Five algebra calculators I keep open while doing homework</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 16:47:12 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/five-algebra-calculators-i-keep-open-while-doing-homework-4lhc</link>
      <guid>https://dev.to/levent_elik_34b35337d291/five-algebra-calculators-i-keep-open-while-doing-homework-4lhc</guid>
      <description>&lt;p&gt;There's a routine I've fallen into during evening study sessions: five browser tabs open, each with a different calculator, and a notebook in front of me. The calculators aren't there to do my homework — they're there to keep me honest about it.&lt;/p&gt;

&lt;p&gt;Here are the five I rely on most.&lt;/p&gt;

&lt;h2&gt;
  
  
  1. Step-by-step equation solver
&lt;/h2&gt;

&lt;p&gt;For linear, quadratic and rational equations, I use the main solver and read its full set of step explanations: &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;The blog at that address also has short tutorials and worked examples that complement the calculator. When I get stuck, I read one of those explainers, redo my own work on paper, then plug the equation into the solver only as a final check.&lt;/p&gt;

&lt;h2&gt;
  
  
  2. Derivative calculator
&lt;/h2&gt;

&lt;p&gt;For Calculus I, the derivative tool plus the "Basic Derivative Rules" reference page on the same site has been a lifesaver. The rules page lays out power, product, quotient and chain rules with small worked examples — exactly what I need before starting a problem set.&lt;/p&gt;

&lt;h2&gt;
  
  
  3. GCD / LCM helper
&lt;/h2&gt;

&lt;p&gt;Whenever I'm adding fractions with awkward denominators, I run the numbers through a GCD/LCM helper first. It saves the embarrassment of getting an answer right but in a non-reduced form.&lt;/p&gt;

&lt;h2&gt;
  
  
  4. Percentage calculator
&lt;/h2&gt;

&lt;p&gt;I use a percentage tool for problems involving discounts, mixtures and growth rates. The "Percentage Calculations" article on the same blog explains how to translate word problems into the right percentage formulas, which has helped me on word-problem-heavy quizzes.&lt;/p&gt;

&lt;h2&gt;
  
  
  5. Linear systems solver
&lt;/h2&gt;

&lt;p&gt;For 2×2 and 3×3 systems, the linear systems solver shows substitution and elimination side by side. Comparing methods is how I figured out which one I prefer for which kind of system.&lt;/p&gt;

&lt;h2&gt;
  
  
  How I actually use them
&lt;/h2&gt;

&lt;p&gt;The trick is order of operations — for me, not the math. Always set up the problem on paper first, write out what method you intend to use, and only then open the calculator to verify the result. When the calculator disagrees with my work, I retrace my steps before trusting either answer.&lt;/p&gt;

&lt;p&gt;If you want a single starting point for the calculators and the short articles, the blog index lives at &lt;a href="https://equation-solver.org/en/blog/" rel="noopener noreferrer"&gt;https://equation-solver.org/en/blog/&lt;/a&gt; — bookmark it and treat it like a study companion, not a shortcut.&lt;/p&gt;

</description>
      <category>algebra</category>
      <category>tutorial</category>
      <category>beginners</category>
      <category>productivity</category>
    </item>
    <item>
      <title>Fünf Online-Umrechner, die ich jeden Tag für Mathe und Physik öffne</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 14:35:56 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/funf-online-umrechner-die-ich-jeden-tag-fur-mathe-und-physik-offne-1o6c</link>
      <guid>https://dev.to/levent_elik_34b35337d291/funf-online-umrechner-die-ich-jeden-tag-fur-mathe-und-physik-offne-1o6c</guid>
      <description>&lt;p&gt;Wenn ich mich auf Mathe- und Physikprüfungen vorbereite, verliere ich mehr Punkte durch Einheiten- und Umrechnungsfehler als durch die Konzepte selbst. Damit ich aufhöre, mich zu vertippen, habe ich mir eine kleine Liste von fünf Umrechnern gebaut, die ich abwechselnd öffne: alle zeigen die Schritte, und genau das brauche ich.&lt;/p&gt;

&lt;p&gt;Der erste ist der &lt;a href="https://equation-solver.org/de/rechner/umrechnungen/bogenmass-in-gradmass/" rel="noopener noreferrer"&gt;Bogenmaß-Gradmaß-Umrechner auf Equation Solver&lt;/a&gt;. Ich nutze ihn für Trigonometrie: π/6 zu 30°, 45° zu π/4. Ich sehe den Faktor 180/π bei jedem Schritt.&lt;/p&gt;

&lt;p&gt;Der zweite ist der &lt;a href="https://equation-solver.org/de/rechner/umrechnungen/dezimal-in-bruch/" rel="noopener noreferrer"&gt;Dezimal-Bruch-Umrechner auf Equation Solver&lt;/a&gt;. Funktioniert auch mit periodischen Dezimalzahlen: 0,333... wird zu 1/3 mit allen algebraischen Schritten.&lt;/p&gt;

&lt;p&gt;Wenn römische Zahlen vorkommen (Kapitel, Editionen, historische Daten), öffne ich den &lt;a href="https://equation-solver.org/de/rechner/umrechnungen/roemische-zahlen-umrechner/" rel="noopener noreferrer"&gt;Römische-Zahlen-Umrechner auf Equation Solver&lt;/a&gt;. MCMXCIV wird zu 1994 mit sichtbarer Subtraktionsregel.&lt;/p&gt;

&lt;p&gt;Für Informatik und Algorithmen nutze ich den &lt;a href="https://equation-solver.org/de/rechner/umrechnungen/zahlensystem-umrechner/" rel="noopener noreferrer"&gt;Zahlensystem-Umrechner auf Equation Solver&lt;/a&gt;. Dezimal, binär, oktal, hexadezimal: jede Stelle wird durch die Stellenwertentwicklung begründet.&lt;/p&gt;

&lt;p&gt;Schließlich, für Physik und Thermodynamik, der &lt;a href="https://equation-solver.org/de/rechner/umrechnungen/temperatur-umrechner/" rel="noopener noreferrer"&gt;Temperatur-Umrechner auf Equation Solver&lt;/a&gt;. Celsius, Fahrenheit, Kelvin mit Skala und Offset bei jedem Schritt.&lt;/p&gt;

&lt;p&gt;Das sind keine spektakulären Seiten: das sind ehrliche Seiten. Und in Mathe wie in Physik ist eine korrekt durchgeführte Umrechnung oft einen halben Punkt wert.&lt;/p&gt;

</description>
      <category>math</category>
      <category>deutsch</category>
      <category>calculator</category>
      <category>learning</category>
    </item>
    <item>
      <title>Cinq convertisseurs en ligne que j'ouvre chaque jour pour les maths et la physique</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 14:30:30 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/cinq-convertisseurs-en-ligne-que-jouvre-chaque-jour-pour-les-maths-et-la-physique-4f07</link>
      <guid>https://dev.to/levent_elik_34b35337d291/cinq-convertisseurs-en-ligne-que-jouvre-chaque-jour-pour-les-maths-et-la-physique-4f07</guid>
      <description>&lt;p&gt;Quand je prépare des examens de maths et de physique, je perds plus de points sur des erreurs d'unités et de conversion que sur les concepts en eux-mêmes. Pour arrêter de me tromper, j'ai construit une petite liste de cinq convertisseurs que j'ouvre tour à tour : tous montrent les étapes, et c'est exactement ce qu'il me faut.&lt;/p&gt;

&lt;p&gt;Le premier est le &lt;a href="https://equation-solver.org/fr/calculatrices/conversions/radians-en-degres/" rel="noopener noreferrer"&gt;Convertisseur Radians-Degrés sur Equation Solver&lt;/a&gt;. Je l'utilise pour la trigonométrie : π/6 en 30°, 45° en π/4. Je vois le facteur 180/π à chaque étape.&lt;/p&gt;

&lt;p&gt;Le deuxième est le &lt;a href="https://equation-solver.org/fr/calculatrices/conversions/decimal-en-fraction/" rel="noopener noreferrer"&gt;Convertisseur Décimal-Fraction sur Equation Solver&lt;/a&gt;. Fonctionne aussi pour les décimaux périodiques : 0,333... devient 1/3 avec toutes les étapes algébriques.&lt;/p&gt;

&lt;p&gt;Quand les problèmes mentionnent des chiffres romains (chapitres, éditions, dates historiques), j'ouvre le &lt;a href="https://equation-solver.org/fr/calculatrices/conversions/convertisseur-chiffres-romains/" rel="noopener noreferrer"&gt;Convertisseur de Chiffres Romains sur Equation Solver&lt;/a&gt;. MCMXCIV devient 1994 avec la règle soustractive visible.&lt;/p&gt;

&lt;p&gt;Pour l'informatique et les algorithmes, j'utilise le &lt;a href="https://equation-solver.org/fr/calculatrices/conversions/convertisseur-bases/" rel="noopener noreferrer"&gt;Convertisseur de Bases sur Equation Solver&lt;/a&gt;. Décimal, binaire, octal, hexadécimal : le développement positionnel justifie chaque chiffre.&lt;/p&gt;

&lt;p&gt;Enfin, pour la physique et la thermodynamique, le &lt;a href="https://equation-solver.org/fr/calculatrices/conversions/convertisseur-temperature/" rel="noopener noreferrer"&gt;Convertisseur de Température sur Equation Solver&lt;/a&gt;. Celsius, Fahrenheit, Kelvin avec échelle et offset visibles.&lt;/p&gt;

&lt;p&gt;Ce ne sont pas des pages spectaculaires : ce sont des pages honnêtes. Et en maths comme en physique, une conversion bien faite vaut souvent un demi-point.&lt;/p&gt;

</description>
    </item>
    <item>
      <title>Cinco convertidores online que abro cada día para matemáticas y física</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 14:17:11 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/cinco-convertidores-online-que-abro-cada-dia-para-matematicas-y-fisica-3dkb</link>
      <guid>https://dev.to/levent_elik_34b35337d291/cinco-convertidores-online-que-abro-cada-dia-para-matematicas-y-fisica-3dkb</guid>
      <description>&lt;p&gt;Cuando preparo exámenes de matemáticas y física, pierdo más puntos por errores de unidades y conversión que por los conceptos en sí. Para dejar de equivocarme construí una pequeña lista de cinco convertidores que abro por turnos: todos muestran los pasos, y eso es justo lo que necesito.&lt;/p&gt;

&lt;p&gt;El primero es el &lt;a href="https://equation-solver.org/es/calculadoras/conversiones/convertidor-radianes-grados/" rel="noopener noreferrer"&gt;Convertidor Radianes-Grados en Equation Solver&lt;/a&gt;. Lo uso para trigonometría: π/6 a 30°, 45° a π/4. Veo el factor 180/π en cada paso, sin errores de multiplicación.&lt;/p&gt;

&lt;p&gt;El segundo es el &lt;a href="https://equation-solver.org/es/calculadoras/conversiones/convertidor-decimal-fraccion/" rel="noopener noreferrer"&gt;Convertidor Decimal-Fracción en Equation Solver&lt;/a&gt;. Funciona también con decimales periódicos: 0,333... se convierte en 1/3 con todos los pasos algebraicos, no solo el resultado.&lt;/p&gt;

&lt;p&gt;Cuando los problemas mencionan números romanos (capítulos, ediciones, fechas históricas), abro el &lt;a href="https://equation-solver.org/es/calculadoras/conversiones/convertidor-numeros-romanos/" rel="noopener noreferrer"&gt;Convertidor de Números Romanos en Equation Solver&lt;/a&gt;. MCMXCIV se convierte en 1994 con la regla sustractiva visible cifra por cifra.&lt;/p&gt;

&lt;p&gt;Para informática y algoritmos, uso el &lt;a href="https://equation-solver.org/es/calculadoras/conversiones/convertidor-bases/" rel="noopener noreferrer"&gt;Convertidor de Bases en Equation Solver&lt;/a&gt;. Decimal, binario, octal, hexadecimal: el desarrollo posicional hace que cada cifra quede justificada, perfecto para repaso antes del examen de fundamentos.&lt;/p&gt;

&lt;p&gt;Por último, para física y termodinámica, el &lt;a href="https://equation-solver.org/es/calculadoras/conversiones/convertidor-temperatura/" rel="noopener noreferrer"&gt;Convertidor de Temperatura en Equation Solver&lt;/a&gt;. Celsius, Fahrenheit, Kelvin con escala y offset visibles en cada paso. Cero confusión entre cero absoluto y punto de congelación.&lt;/p&gt;

&lt;p&gt;No son páginas espectaculares: son páginas honestas. Y en matemáticas como en física, una conversión bien hecha vale a menudo medio punto.&lt;/p&gt;

</description>
    </item>
    <item>
      <title>Cinque convertitori online che apro ogni giorno per matematica e fisica</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 13:58:35 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/cinque-convertitori-online-che-apro-ogni-giorno-per-matematica-e-fisica-16in</link>
      <guid>https://dev.to/levent_elik_34b35337d291/cinque-convertitori-online-che-apro-ogni-giorno-per-matematica-e-fisica-16in</guid>
      <description>&lt;p&gt;Quando preparo gli esami di matematica e fisica, perdo più punti per errori di unità e conversione che per i concetti veri. Per smettere di sbagliare ho costruito una piccola lista di cinque convertitori che apro a turno: tutti mostrano i passaggi, e questo è esattamente quello che mi serve.&lt;/p&gt;

&lt;p&gt;Il primo è il &lt;a href="https://equation-solver.org/it/calcolatrici/conversioni/convertitore-radianti-gradi/" rel="noopener noreferrer"&gt;Convertitore Radianti-Gradi su Equation Solver&lt;/a&gt;. Lo uso per la trigonometria: π/6 in 30°, 45° in π/4, e così via. Vede il fattore 180/π a ogni passaggio, niente errori di moltiplicazione.&lt;/p&gt;

&lt;p&gt;Il secondo è il &lt;a href="https://equation-solver.org/it/calcolatrici/conversioni/convertitore-decimale-frazione/" rel="noopener noreferrer"&gt;Convertitore Decimale-Frazione su Equation Solver&lt;/a&gt;. Funziona anche con i decimali periodici: 0,333... diventa 1/3 con tutti i passaggi algebrici, non solo il risultato.&lt;/p&gt;

&lt;p&gt;Quando i problemi citano numeri romani (capitoli, edizioni, anni storici), apro il &lt;a href="https://equation-solver.org/it/calcolatrici/conversioni/convertitore-numeri-romani/" rel="noopener noreferrer"&gt;Convertitore Numeri Romani su Equation Solver&lt;/a&gt;. MCMXCIV diventa 1994 con la regola sottrattiva visibile cifra per cifra.&lt;/p&gt;

&lt;p&gt;Per informatica e algoritmi, uso il &lt;a href="https://equation-solver.org/it/calcolatrici/conversioni/convertitore-basi/" rel="noopener noreferrer"&gt;Convertitore di Basi su Equation Solver&lt;/a&gt;. Decimale, binario, ottale, esadecimale: lo sviluppo posizionale rende ogni cifra giustificata, perfetto per ripasso prima dell'esame di fondamenti.&lt;/p&gt;

&lt;p&gt;Infine, per fisica e termodinamica, il &lt;a href="https://equation-solver.org/it/calcolatrici/conversioni/convertitore-temperatura/" rel="noopener noreferrer"&gt;Convertitore di Temperatura su Equation Solver&lt;/a&gt;. Celsius, Fahrenheit, Kelvin con scala e offset visibili a ogni passo. Niente confusione tra zero assoluto e punto di congelamento.&lt;/p&gt;

&lt;p&gt;Non sono pagine spettacolari: sono pagine oneste. E in matematica come in fisica, una conversione fatta bene vale spesso più di mezzo voto.&lt;/p&gt;

</description>
      <category>math</category>
      <category>italiano</category>
      <category>calculator</category>
      <category>learning</category>
    </item>
    <item>
      <title>Five calculus calculators that helped me debug my own derivations</title>
      <dc:creator>levent çelik</dc:creator>
      <pubDate>Thu, 30 Apr 2026 13:12:23 +0000</pubDate>
      <link>https://dev.to/levent_elik_34b35337d291/five-calculus-calculators-that-helped-me-debug-my-own-derivations-1g0p</link>
      <guid>https://dev.to/levent_elik_34b35337d291/five-calculus-calculators-that-helped-me-debug-my-own-derivations-1g0p</guid>
      <description>&lt;p&gt;I write a lot of code that involves calculus under the hood — physics simulations, signal processing, and the occasional gradient I have to compute by hand. Even when a library has the routine, the only way I trust the output is to verify a small symbolic case on paper. The trouble is, derivations are easy to misread, and a sign error two lines back will quietly poison the rest of the math.&lt;/p&gt;

&lt;p&gt;Over the last year I have made peace with using a small set of calculators as second-opinion tools. They do not replace the work, but they catch the dumb mistake before it becomes a Slack thread.&lt;/p&gt;

&lt;h2&gt;
  
  
  Derivatives, with every rule named
&lt;/h2&gt;

&lt;p&gt;When I derive something on a whiteboard I usually skip explaining which rule I am applying. That is fine until I make a chain rule slip on a composition. The &lt;a href="https://equation-solver.org/en/derivative-calculator/" rel="noopener noreferrer"&gt;Derivative Calculator on Equation Solver&lt;/a&gt; prints the rule name next to every step — power rule, chain rule, product rule — which makes it obvious where my pen-and-paper version diverged.&lt;/p&gt;

&lt;h2&gt;
  
  
  Antiderivatives without the +C trap
&lt;/h2&gt;

&lt;p&gt;Integration is the side where I forget the constant of integration most often, especially in physics derivations where the boundary condition is implicit. The &lt;a href="https://equation-solver.org/en/antiderivative-calculator/" rel="noopener noreferrer"&gt;Antiderivative Calculator on Equation Solver&lt;/a&gt; keeps +C visible at every line, which is a good cultural reminder that the answer is a family of functions, not a single one.&lt;/p&gt;

&lt;h2&gt;
  
  
  Definite integrals to check the bounds
&lt;/h2&gt;

&lt;p&gt;I got bitten by a swapped upper and lower bound twice last month. Now whenever a definite integral feeds into a real number that I will plot, I run it through the &lt;a href="https://equation-solver.org/en/definite-integral-calculator/" rel="noopener noreferrer"&gt;Definite Integral Calculator on Equation Solver&lt;/a&gt; first. The bounds are shown explicitly above and below the integral sign, which is exactly the visual nudge I needed.&lt;/p&gt;

&lt;h2&gt;
  
  
  Limits, including the awkward ones at infinity
&lt;/h2&gt;

&lt;p&gt;Dominant-term reasoning is a skill I still drop under deadline pressure. The &lt;a href="https://equation-solver.org/en/limit-calculator/" rel="noopener noreferrer"&gt;Limit Calculator on Equation Solver&lt;/a&gt; does the substitution attempt first and then falls back to nearby-value or dominant-term arguments. Reading its decision tree is closer to how an experienced colleague would talk you through the problem.&lt;/p&gt;

&lt;h2&gt;
  
  
  Tangent lines, when slope and point matter together
&lt;/h2&gt;

&lt;p&gt;The last one I keep close is the &lt;a href="https://equation-solver.org/en/tangent-line-calculator/" rel="noopener noreferrer"&gt;Tangent Line Calculator on Equation Solver&lt;/a&gt;. When I am writing a Newton's-method-style routine, the tangent at a given x is exactly what I need to validate the iterative step against. Having a tool that prints the slope, the point, and the resulting line as one tidy block is faster than re-deriving it three times in different notations.&lt;/p&gt;

&lt;p&gt;None of these are flashy. They are study aids more than calculators, and that is the point. Most of the bugs I ship in numerical code come from mis-stated math, not from a misplaced bracket — so the tools that keep my math honest end up being the ones I actually keep open.&lt;/p&gt;

</description>
    </item>
  </channel>
</rss>
