# Simple way to write equations

The MathJax is fine , but it is so complex to write integral and Sigma notations using it . Is there any other way to write these complex equations?

Btw I am on mobile often so it is hard to write code :-/

• Perhaps you can have a look at the suggestions given in some older discussions here on meta, such as: WYSIWYG for math formulas?, MathJax WYSIWYG Editor or Is there an application where you can visually input LaTeX and have it translate to a code that works in Stack Exchange?. At the same time, writing some simple integrals and sums isn't that difficult once you get a bit of practice. (I guess it's easier on a desktop rather on some mobile device.) Feb 8 at 6:21
• You should visit this tutorial which is especially designed for beginners : Short and helpful advice on using MathJax on the site ...
– Paramanand Singh Mod
Feb 8 at 10:30
• What's complicated about writing \int_0^1f(x)\,dx to get $\int_0^1f(x)\,dx$? Feb 8 at 11:43
• @GerryMyerson I understand the OP. For example on the iOS English keyboard here, the $ and numbers is in one symbols page, while \  , _, and ^ is in another symbols page, and the letters is yet in another page. :-\\ Feb 8 at 16:53 • @peter, OK, I understand. But unless it's possible to install some software that takes in "integral from zero to one of f(x) dx" and produces$\int_0^1f(x)\,dx\$ I don't see what can be done. Feb 8 at 20:58
• @peterwhy: The keyboards apps for mobile devices usually have to fit in many features in a small space so a little bit switching between pages of the app is necessary. After some time this becomes a habit. For me (MS SwiftKey on Android) the symbols (including dollar, plus, minus etc) appear using long press of alphabet keys and that's mostly sufficient for typical usage of mathjax.
– Paramanand Singh Mod
Feb 9 at 5:45