If you know free math software that can let me

[Hodan94]

Why are you writing in English then. I was born and bred in the uk what do you expect. At least correct me than put these stupid smileys on.
my somali writing skills are bad yes, and I am practising it but at least I can speak it.

[Arabman]

http://en.wikipedia.org/wiki/Khan_Academy

https://www.youtube.com/user/khanacademy

[Marques]

http://en.wikipedia.org/wiki/Khan_Academy

https://www.youtube.com/user/khanacademy

Good stuff if you're fed up with the lecturer's notes. Wolfram Alpha is also another helpful site.

[Alto]

Write math Like I would on a piece of paper, or on a notebook like this:





Let me know please. thanks in advance.

Is that relativity or dynamical systems? Doesn't look like the Maths i studied..

James clerk Maxwell's light propagation formula in a vacuum.

[Marques]

Write math Like I would on a piece of paper, or on a notebook like this:





Let me know please. thanks in advance.

Is that relativity or dynamical systems? Doesn't look like the Maths i studied..

James clerk Maxwell's light propagation formula in a vacuum.

Ah, physics. I knew something was fishy. Seeing derivatives and scalars put a question mark on it first.

[Gabre]

The standard in academia is LaTeX, but it's kind of a hassle to get started with it (lots of packages to download, plus it has its own syntax). I could've sworn there was an online wysiwyg editor for LaTeX out there somewhere, but I can't seem to find it right now. You might want to check out https://www.sharelatex.com/ and http://www.bakoma-tex.com/ in the meantime, although I'm not sure whether the latter one requires you to download the whole (and pretty large) LaTeX system (last time I did it was ~4 GBs...basically a shit ton of fonts).

LaTeX is free, open source software built on the work of the great Donald Knuth with TeX.