(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

:For var, low, high
:return x


  • 2ND + 5 (Math)
  • B:Calculus
  • 4:∑(


: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.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.