7.50.3 Can you answer these questions?

7.50.3.1 How to use the parameters? There is an @ symbol at the definition of \title

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610376

What dose the symbol @ mean? 
@checktitle and s@title. 
How to use the two parameters? 
\renewcommand{\title}[2][]{% 
\gdef\@checktitle{#1}\ifx\@checktitle\empty\gdef\@title{#2} 
\gdef\s@title{#2}\else\... 
[titles]
 

asked by Blue Bird https://tex.stackexchange.com/landing/r/digest?cta=user&id=246678 1 vote

7.50.3.2 How to write sections in following format?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610707

I am not able to find a function to write this. Please help! 
[sections-paragraphs]
                                                                                  

                                                                                  
 

asked by Unknown https://tex.stackexchange.com/landing/r/digest?cta=user&id=249129 1 vote

answered by Enevevet https://tex.stackexchange.com/landing/r/digest?cta=user&id=204085 0 votes

7.50.3.3 how to eliminate automatic indentation in pseudo code

https://tex.stackexchange.com/landing/r/digest?cta=question&id=610773

In the code, one of the lines has an automatic indentation. How can I eliminate the indentation(it is the line after the command "\Endwhile")? 
\documentclass{article} 
\usepackage{amsmath,... 
[indentation] [algorithmicx] [algorithmic] [pseudocode] [algpseudocode]
 

asked by JuanMuA~+-oz https://tex.stackexchange.com/landing/r/digest?cta=user&id=62633 1 vote

answered by citsahcots https://tex.stackexchange.com/landing/r/digest?cta=user&id=203859 0 votes