DEV Community: latexteada

LaTeXteada Project: Saying Goodbye

latexteada — Sat, 01 Jan 2022 15:38:47 +0000

Hello, how are you?

I this post I tell you the story behind this project, why did I decide to start this and what is going to be the future of this blog

The story behind this blog

The first time that I heard about LaTeX was in the high school, one professor told us about this, and it was interesting for me, however, I did not researched about the topic, because my math stuff was in paper.
It was until the 2nd semester of the university where I decided to start doing my Physics Lab's reports in LaTeX. At the beginning it is painful, because, I was spending more time searching how to do ... than the time doing the reports, and yes, at the beginning LaTeX is hard, because it is a complete new environment, you need to learn commands, expressions, etc.

However I was grasping how to become more fluent, some patterns, instructions, but I just was searching on YouTube and in some other blogs, I never opened a book about LaTexor took a formal course.

It was like 1 year later when I decided to open my first book about LaTeX, it was good, because I was learning those little details which make you say Ohh I finally understand and I noticed that reading books was a good idea.

When I attend my first course, I notice that I was already familiar with the 98% of the course, nothing special was happening with the courses, the only thing that changed was that there was a video, so I forget the courses and focused myself in the books, and I keep learning with books

Why did I decide to start this blog

As I told you, I love learning from books, but I was noticing some pattern:

The information in the book A was almost the same as the information of the book B

And it was logical, because the commands and instructions are the same, so, I decided to read one book first, write a synopsis and then start another book and just write down the information that was different from the first book, so, I read 10 pages of the book, but I only was writing 5 lines

So today, but one year ago I was thinking:

I need to share this information with the people outside

Because many information of the books lives there, in the books, and nowhere else, I decided to open my account on Twitter (to publish and have a bigger audience) and here in dev.to to write the blog.

What about the language? Well I decided to write this blog on English because I wanted to be practicing my writing skills, and, at a certain point, to reach more people, to have a bigger audience, and I learned something

You can not master something until you understand what you are doing

In the first post I was just throwing content, until I decided to analyze what I was doing and how i needed to do that, I gave to the blog more structure, and fragmented it into sections

The future of this blog

The first thing that I need to say is

I won't delete this blog

This blog is going to be open forever, the only thing that is going to change is that I won't publish anything else here,

This is my last post here

LaTeX is a huge world, giant. You can do all kind of stuff here, but I just wanted to talk about the common things in all the documents:

Equations, tables, figures, personalize the sheet and macros

And I reached that goal, and I am happy for that, because I did it in one year, but something else, I was not planning what to publish, there was not a list of What is next the order of this blog is just based on my experience

Saying Goodbye

I want to thank to all that people who choose to open my blog when they search something related with LaTeX, to the people and organizations on Twitter which press the retweet and like button, to the people who followed me, to OM, JR, and CT who supported me to create and keep going with this blog and told me not to quit.

I want to keep growing in this LaTeX world, and, in the future do some contributions or create something for this amazing project.

This is all for today, and forever

Do not forget to follow me on Twitter @latexteada

Greetings from Mexico, see you :D

LaTeX: Where else can I find or use LaTeX?

latexteada — Wed, 29 Dec 2021 15:59:01 +0000

Hello, how are you? :)

In this post I tell you

Where else you can find or use LaTeX
How to use LaTeX in another platforms

Notion

This supports basic math environments, it is, you can not declare macros (yet) or do advanced stuff, but you can mix math with some environments that they already have

You need to write the entire command in the appropriate way, otherwise, it will appear an error

Here you can use inline equations and displayed equations

Inline Equations you need to use double $$ instead of one to start and end an equation
Displayed Equations you need to put /blockequation and then write the desired equations

SymPy

You can get the LaTeX code of an equation with a simple instruction, just follow the next steps

Import sympy
Use the command sp.latex(myExpression)

It will give you the LaTeX code of the equation

import sympy as sp

sp.latex(myExpression)

Jupyter Notebooks

If instead of getting the LaTeX code you want a visualization of the expression, you need to write these lines in your Jupyter Notebook

from sympy.interactive import printing
printing.init_printing(use_latex=True)

Detexify

Here you can draw, yes, draw the symbol that you are searching, and this page returns the LaTeX command

Mathpix

Here you can take pics of your written equations, and returns the LaTeX code

Overleaf Templates

You can find lots of templates for your work like books, cv, theses, etc. You can check that page here

TUG (Tex User Group)

You can find many resources here, like documentation, help, community, you need to explore it by yourself here

Visual Studio Code LaTeX Extension

It's an extension for VSCode to edit LaTeX documents, you can mix its functionality with many more extensions for VSCode, you can check it here

These are my favorite resources (also the only ones which I know) if you want to share your favorite resources you can leave them in the comments section

That is all for today, thanks

Do not forget to follow me on Twitter `@latexteada

Greetings :)

LaTeX: The theorem Like Environment

latexteada — Wed, 22 Dec 2021 15:45:56 +0000

Hello, how are you? :)

In this post I talk about

How to declare theorem like environments

Introduction

In past post I have talked about macros, but these just are instructions, they are shortens to do something bigger and avoid writing the same instruction many times, what about if we want to create environments?

The theorem like environment is an environment which you can personalize to be numbered according to a certain enumeration, this is useful because you can have the same format to different mathematical proofs, theorems, lemmas, etc, and instead of declaring or writing the same instruction, you just call the environment and it's all

The `theorem` environment

We say that it is a theorem environment because it is the name of the command, as you are about to notice, but you can create Lemmas, Proofs, and many other stuff, it is just a matter that you put the appropriate name to that

The general instruction is

\newtheorem{name}{print}[numbered]

Where

name is the name of the environment
print is the word to be shown in the document
numbered is the sectional unit based on which the environments is to be numbered (this is optional, you can see it because it has [] instead of {}

An example

Produces

See? the environment puts a default enumeration, in this case, it has not any reference, but, in numbered we can put according to what we want that enumeration, for example

section for section
subsection for subsection

Produces

You can play with this!!

Referencing to a theorem

Remember that we say theorem because it is the name of the command

Do you remember the instruction ref and label, if not you can check them here and here, there are good news, you can refer theorems too, the suggested way to call theorems and mathematical stuff is

\eqref{name}

Remember to import the amsmath package in the preamble

Where name is the name of the label, let's see some examples

Produces

Did you see, the eqref adds some parentheses

Some conventions to use while labeling the theorem are

thm theorem
prop proposition
dfn definition
prf proof
cor corollary
princ principle
lem lemma

Useful Tricks

Names of the theorems

What if we want to be more specific in a theorem? What if we want to add a name, well we have two options, use [] or ()

Produces

Delete the cursive

When we are using any math theorem it puts the mathematical equations in cursive, and the theorems are in cursive, it is a mess because sometimes it is difficult to differentiate between normal text and math stuff, so, if we want to delete the cursive in the theorems we just need to add

\usepackage{amsthm}
\theoremstyle{definition}

Produces

We need to import the amsthm package and if we put the environment before \theoremstyle{definition} it won't be affected, but if we put the environment after it it will be affected

LaTeX: The include Command

latexteada — Wed, 15 Dec 2021 16:03:56 +0000

Hello, how are you? :)

In this post I talk about

The \include command

Introduction

The last posts of this blog have been about Macros we have checked some variants of macros and we have seen that these are declared in the preamble of our document, so, if we want to declare a new macros we must go to the preamble, declare them there and then go back to our document, everything is fine.

But what happens if we need to declare the same macros in another document, and in another and so on, it will be a headache because we need to declare them in each document that we create. There must be an easy way to do it, and this is the main topic, or purpose, of this post is to teach you a very useful instruction, the \include command

The `include` command

Here we are going to use this command to include the macros and other environments that we will see in the following posts, but this command has another functionalities, which are not related with this topic

This command is declared in the preamble

As its name suggest it includes the content of other .tex (The extension of the LaTeX document) document into our current document, the command is simple

\include{pathOfFile/nameOfFile}

Including a file with `include`

Do not forget to add the extension of the file, in this case, it is .tex If you do not add it you will get an error

We have seen that the command to include a file is \include{} but we need to give the pathOfFile it is the location of our file that we want to import to our current file, and there are three possibilities

File in the same location where we are working We just need to put the name of the file

\include{myFile.tex}

File in the same location but inside another folder We need to put the route to the file, indicating the name of the folder in the path.

Let's suppose my folder's name is myFolder

\include{myFolder/myFile.tex}

If it is inside multiple folders we just put the name of all the folders where it is and then the name of the file

\include{myFolder/.../myFile.tex}

Where the ... is the short for all the folders, but you must put the name of all the folders

File in a different location Here we need to put the specific route where the file is. In the last point we see that to go deeper we need to put the name of the folders, now to go backward we need to use ..

\include{../myFolder/myFile.tex}

This is all for today, thanks

Do not forget to follow me on twitter @latexteada

Greetings :)

LaTeX & Macros: Macros with repeated arguments

latexteada — Wed, 08 Dec 2021 15:50:56 +0000

Hello, how are you? :)

In this post I tell you

How to declare a macros with repeated arguments

We have seen how to declare macros, how to declare macros with arguments, how to put math in macros, and how to declare macros with optional arguments

But what if there is a symbol or parameter which appears multiple times in your macros? Do we need to write it each time it appears in our macros? It would be a waste of time!!!, fortunately we can declare a repeated argument

Macros with repeated arguments

We just need to put multiple times the argument that we want to repeat in the positions where it must be. Let's see an example

Let's check this code, here I declare the instruction \dint as short of definite integral with 4 arguments

The function to be integrated
Here is the repeated argument it is the variable by which the integral will be done, after the differential, and under the integral symbol
Inferior limit
Superior limit

It produces

See? you just need to put the variable once and it appears in two places

Play with this macros and discover its limits

This is all for today.

Do not forget to follow me on Twitter @latexteada

See you. Greetings :)

LaTeX & Macros: Macros with Optional Arguments

latexteada — Wed, 01 Dec 2021 17:28:52 +0000

Hello, how are you? :)

In this post I tell you

How to create macros with optional arguments

We have seen that we can create our own instructions, macros without arguments, and macros with arguments. Sometimes is convenient to set a default argument in a macros and modify it just when we need it, that is what we are going to learn today

Optional Arguments

Macros with one argument

The general structure of that is

\newcommand{name}[Narg][default]{instructions}

name is the name of the command
Narg is the number of arguments
default is going to be the value which will be the default value, but, also, the argument which will change
instructions is what the command will do

Produces

Did you notice? If we want to change the argument we use [] instead of {}

If we do not specify the argument it will show the default command, but if we change, the instruction will change

Macros with multiple arguments

We already know how to set an optional argument but with macros with one argument, what if we want a macros with multiple argument?

Only the first argument may be optional

Produces

We need to call the optional argument with [] as the previous example

This is all for today.

Do not forget to follow me on Twitter @latexteada

Greetings :)

LaTeX & Macros: Math in Macros

latexteada — Wed, 24 Nov 2021 15:54:02 +0000

Hello, how are you? :)

In this post you I tell you

How to put or declare math in a macro

Introduction

We have checked two types of macros

Macros without arguments
Macros with arguments

And, we have seen that they help us to avoid repeating the same structure many times, but with normal text, not with math.

Math in macros

Today we will meet the instruction

\ensuremath{myEquation}

This command allow us to define macros with math which works in text and math modes, the general structure is

\newcommand{\name}{\ensuremath{myEquation}}

So, you could had thought, I just put the instructions between $ and it is all but no, because if you do that in the macros, in the normal text you need to put the math between $ too, and it is not correct

Here I declared the macro with math using our new instruction, it produces

Did you notice, with ensuremath you can use your command either between $ or without them

The recommendation is to use the math inside the $ symbols or \[\] as we have seen, to have an order and know when something is about math and when it is not related with math

Here is an example where you can play.

What happens if you do not use ensuremath and want to use a math expression without using $?

This is all for today

Do not forget to follow me on Twitter @latexteada

Greetings :)

LaTeX & Macros: Macros with Arguments

latexteada — Wed, 17 Nov 2021 16:42:19 +0000

Hello, how are you? :)

In this post I tell you

How to declare macros with arguments

Do you remember that in this post I gave you a brief introduction to Macros without arguments, these are helpful in those situations where you need the same expression multiple times, but what if you need to have the same expression but just modify something?

How to declare macros with arguments

The command is the following



\newcommand{\name}[args]{expr}

\name is the name of the command
args is the number of arguments in the command, top 9
expr is the expression to manipulate

You already know what is \name, but if you have forgotten it, you can check it here

args, this is the number of arguments in the command, in other words, the blanks to be filled

If you want 1 argument you put 1, if you want 2 put 2 and so on. The maximum number of arguments is 9

The same number of arguments declared in args must match with the arguments used in the definition of expr

To put the position of the commands, we need to use #

The arguments have an order

Let's see some examples to clarify the information

Let's analyze the code :)

Here I declare two new commands

The command \oneArg has one argument (Which is declared in the square brackets) and this argument is going to be the exponent of x. Can you notice, there is a # this indicates Here is going to be my argument

The command \twoArgs has two arguments, one is going to be the variable, and the second is going to be the exponent, again, I use # to say Here is going to be my argument

See, when I use these new commands, check that \oneArg has one curly brackets while \twoArgs has two curly brackets

The curly brackets match with the number of arguments

That code produces

But wait, do you remember that the arguments have an order while declaring them, let's check it

Here we have two new commands \first and \second they have two arguments, but there are a subtle difference, did you notice it? Yes The position of the arguments Let's see what is the output

Now you have grasped what have an order means

This is all :)

Thanks for reading.

Do not forget to follow me on Twitter @latexteada

Greetings :)

LaTeX & Macros: Creating Macros & Macros without arguments

latexteada — Wed, 10 Nov 2021 16:03:11 +0000

Hello, how are you? :)

In this post I tell you

How to declare the macros, and where
How to create macros, in this time, macro without arguments

Let's Start!!!

Declaring Macros

This is valid for any kind of macros, but in this post I just talk about macros without arguments

First of all, you need to know that The names of the macros must not match with existing ones, so you will have an error if you create a macros with the equation name.

Macros are declared in the preamble, the syntax is the following

\newcommand{\name}{task}

Where

-\name is the way you will call the macro in your text

Be careful you need to use the \ when declaring the macro, because now that word is going to be the name of the instruction

-task are the actions that the macro will perform

Here you can use normal text or instructions already defined

Creating macros

Let's create our first macros, with name \post and the action that prints Hello

Produces

Here is an example, where you can play and modify

But, you can create macros with LaTeX commands

Produces

Here is an example, where you can play and modify

This is the most basic macros, there are more, but these are for other post.

This is all!!!

Do not forget to follow me on Twitter @latexteada

Greetings :)

LaTeX & Macros: The Idea

latexteada — Wed, 03 Nov 2021 15:55:08 +0000

Hello, how are you? :)

In this post I tell you about Macros. You will discover if these are useful for you and if you need these. Let's start!!!

Remember that these Macros are for LaTeX there are other softwares that use macros, but we are talking about LaTeX

What are the Macros?

A macro is a set of instructions, which will be executed when we write a command.
We need to create these instructions and give them the steps which will be performed when we call this instruction

In LaTeX we can create macros to write equations, words, environments, multi-argument equations, environments, etc.

How do I know if I need macros?

This is a natural question, well, to answer it, let me tell you, check the definition again.

You could use a macro if your document has many repetitive structures
To save time writing different structures, or equations
In the math context, you need to put the same equation in many places
To insert figures in a fast way

But if you just need to do it once in your document, just do it in the normal way, it could be more efficient instead of declaring your macros.

There are different kinds of macros, without arguments, a single argument, multiple arguments, optional arguments, we will check them here.
Declaring macros is easy, you do not need to be worried about this, but this is topic for the next post.

This is all!!!

Do not forget to follow me on Twitter @latexteada

Greetings :)

LaTeX: Customizing the Page

latexteada — Wed, 27 Oct 2021 14:36:04 +0000

Hello, how are you? :)

In this post I tell you how to change the position of the numbers in your document or delete them. Let's start!!!

Let me introduce you to the instruction

\thispagestyle{STYLE}

Where STYLE can be

empty no header, no footer
plain the page number is on the footer
headings the page number is on the header

You can put that instruction in every single page of your document, or you in some of them.

Here is an exaple, you can play with it and use all the commands.

This is all for today, thank you!!!

Do not forget to follow me on Twitter @latexteada

Greetings :)

LaTeX: Numbering the Pages & Customization

latexteada — Wed, 20 Oct 2021 15:21:09 +0000

Hello, how are you? :)

In this post I tell you

How to start the page numbering from other number, different of 1
How to mix the numbering style and the page numbering

Let's start!!!

Page Numbering

Do you remember that in this post I tell you how to customize the style of the numbering in the page, now you can use

\setcounter{page}{n}

Where n is the desired starting page number

If we put this instruction in the preamble the starting page of the document is going to be n

But we can put this instruction on the body of our document and have different enumerations inside the document

Mixing Styles

What if I want to have multiple styles of numbering in my document, we first need to put the style and then the number, it is

\pagenumbering{style}
\setcounter{page}{n}

You can check the style here

Check this code by yourself :)

This is all, thank you!!!

Do not forget to follow me on Twitter @latexteada

Greetings :)

DEV Community: latexteada

LaTeXteada Project: Saying Goodbye

The story behind this blog

Why did I decide to start this blog

The future of this blog

Saying Goodbye

LaTeX: Where else can I find or use LaTeX?

Notion

SymPy

Jupyter Notebooks

Detexify

Mathpix

Overleaf Templates

TUG (Tex User Group)

Visual Studio Code LaTeX Extension

LaTeX: The theorem Like Environment

Introduction

The theorem environment

Referencing to a theorem

Useful Tricks

Names of the theorems

Delete the cursive

LaTeX: The include Command

Introduction

The include command

Including a file with include

LaTeX & Macros: Macros with repeated arguments

Macros with repeated arguments

LaTeX & Macros: Macros with Optional Arguments

Optional Arguments

Macros with one argument

Macros with multiple arguments

LaTeX & Macros: Math in Macros

Introduction

Math in macros

LaTeX & Macros: Macros with Arguments

How to declare macros with arguments

LaTeX & Macros: Creating Macros & Macros without arguments

Declaring Macros

Creating macros

LaTeX & Macros: The Idea

What are the Macros?

How do I know if I need macros?

LaTeX: Customizing the Page

LaTeX: Numbering the Pages & Customization

Page Numbering

Mixing Styles

The `theorem` environment

The `include` command

Including a file with `include`