:∫(expression, variable)

Finds an integral of an expression as related to a variable.

:∫(expression, variable, valueOfC)

Finds the integral of the expression as related to a variable, then adds valueOfC to it.

:∫(expression, variable, lowerRange, upperRange)

finds the value of an integral between two values.

## LocationEdit

- 2ND + 7

## ExampleEdit

:x^2+2x+1→f(x) :Disp ∫(f(x),x) :Disp ∫(f(x),x,0,1)

This will display `x^3/3+2^x+x`

and `7/3`

. `x^3/3+2^x+x`

is the integral of `x^2+2x+1`

, and 7/3 is the integral's value between 0 and 1.