How do you write sigma ?

Hello Guest!

How do you write sigma ?

Click the link
http://www.matheretter.de/mathe-zeichen

Mark Σ and operated   ctrl   C.

Go back and operated   ctrl   V.

Good night.

asinus :- )  !

I gave you a few resources that helped me when I was learning sigma notation and didn't get it it school.

• personally, this helped me out a lot: https://www.khanacademy.org/math/integral-calculus/sequences-series-approx-calc/calculus-series/v/writing-series-sigma-notation
• This is a clear, simple one that also helped me out a lot: http://www.coolmath.com/algebra/19-sequences-series/03-series-sigma-notation-01

Good luck!