Linked Questions

8
votes
3answers
26k views

How can I type the “isomorphic”,“not equal” and “the set of integers , rationals and reals” symbol? [duplicate]

How can I type the "isomorphic","not equal" and "the set of integers , rationals and reals" symbol ? What is the code ? $=$ means equal, how to write "not equal" What about real numbers, ...
23
votes
1answer
4k views

where is the latex reference please [duplicate]

hi, There is a nice pretty markdown ref but no simple quick latex reference. I looked around in the faq and on meta. I also googled for some latex reference and some of it looks slightly different ...
9
votes
1answer
4k views

How to input matrices when posting questions at Math StackExchange? [duplicate]

I would like to post a question here in which I would like to insert a $2 \times 2$ matrix with entries $a$, $b$, $c$, and $d$, respectively, in the positions row 1 col. 1, row 1 col. 2, row 2 col 1, ...
6
votes
1answer
10k views

How to show the integral symbol on this site? [duplicate]

On this question: How do I use substitution in integrals? there are examples of what I want. I just want to show integrals on my questions like that. How can I do it?
2
votes
1answer
13k views

How to type greater than or equal to symbols? [duplicate]

What are the markups for such symbols?
0
votes
2answers
6k views

How to do formatting? [duplicate]

I need help with formatting like how to use logs, lims, superscripts and subscripts etc.
2
votes
1answer
16k views

How to write powers ( exponents ) in a proper way? [duplicate]

I don't how to write the powers or the exponents and the other mathematical expressions
5
votes
1answer
966 views

How to write mathematical symbols such as $\sum_{i=n}^\mathbb{N}$ with indices below/above the $\sum$ [duplicate]

I want to write: $\cup_{n \in \mathbb{N}}$, and $\sum_{i=n}^\mathbb{N}$. But I want them the index to be above and below the symbol, not to the side, how do I fix this?
1
vote
1answer
3k views

How to write down the equations? [duplicate]

I am new at the website. I see that there are equations in many posts as well as in the answers. I can't write down this equation in this website. But I need to write it. This may seems to off-topic....
5
votes
1answer
1k views

How to write plus-minus sign in MathJax? [duplicate]

Plus-Minus. Means a quantity of same magnitude can have either a positive or a negative value. As commonly found in square roots such as $$\sqrt[2]{625}= +-25$$. Here is an Wikipedia SVG-example ...
1
vote
3answers
2k views

How to format maths equations to display correctly [duplicate]

I am trying to find the list of Mathjax/Latex instructions on how to type equations and symbols so they display correctly on the site. ie. $2^2$ rather than 2^2
2
votes
1answer
1k views

how to write complex mathematics formula here? [duplicate]

How can i write math formula here?there is any way to write complex math formula here? I want to add math equation here but it seems no tool for writing formula.
3
votes
1answer
3k views

Number sets symbols in Mathjax [duplicate]

How can we write number sets symbols using Mathjax? For example what's the code for Natural numbers set? I couldn't find that in a vast of Mathjax help documents,and the only one I found doesn't work: ...
2
votes
1answer
731 views

Why are (most) spaces eliminated in \mathrm formatting? [duplicate]

Why does this: $\mathrm{The quick, brown fox jumped over the lazy dog.}$ result in this: $\mathrm{The quick, brown fox jumped over the lazy dog.}$ Note ...
1
vote
1answer
452 views

MathJax doesn't render dynamically… Why not? [duplicate]

When I post this: \sum_{n=0}^\infty\binom{n}{k}x^n=\frac{x^k}{(1-x)^{k+1}}\tag{1} ... all I see is string of code, not the nifty looking math symbols. When I post the above to a test site, however, ...

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