## FANDOM

484 Pages

(89) :∑(expression, var, low, high)


Summation. The var is the variable in the expression that varies. The low is the low value, and high is the high value.

This can be used as a shortcut for

:0→x
:For var, low, high
::x+expression→x
:EndFor
:return x


## LocationEdit

• 2ND + 5 (Math)
• B:Calculus
• 4:∑(

## ExampleEdit

:sumOfSqr()
:Disp ∑(x^2,x,1,5)
:Disp ∑(x,x,1,100)


This prints $\sum_{x=1}^5 x^2$ then $\sum_{x=1}^{100} x$, or 55 and 5050 respectively.