# How to write mathematical expressions in questions using android devices? [duplicate]

I posted a question at Physics Stack Exchange site, and I uploaded a photograph of the calculation I had done on that. But, I was asked to write all my calculations in the question(and not in the photograph). So, How to write mathematical expressions in questions using android devices?

## marked as duplicate by Kyle Kanos, AccidentalFourierTransform, Qmechanic♦Jul 29 '18 at 12:27

MathJax should work on android devices. You'll still be typing out plain text with $symbols enclosing the math. • To be fair, I think that typing any nontrivial mathematics using the default Android keyboard is a serious hassle --- and I'm an expert at it. – rob Jul 23 '18 at 13:36 • @rob I'm in India, so the keyboard on my phone keeps trying to convince me that I need the rupee symbol instead of$. – user191954 Jul 23 '18 at 13:39