1 / | | -x | --- | 2 | e dx | / 0
Integral(E^(-x/2), (x, 0, 1))
/ | | -x -x | --- --- | 2 2 | e dx = C - 2*e | /
-1/2 2 - 2*e
=
0.786938680574733
Use the examples entering the upper and lower limits of integration.