The package NumericalQuadrature implements several operations for numerical integration. Here I provide just some examples. Documentation is to be found in the corresponding .spad or .pamphlet file.

romberg(x+->exp1()^x,0.0,1.0,0.1,0.1,6,10)

(1)

simpson(x+->exp1()^x,0.0,1.0,0.1,0.1,6,10)

(2)

trapezoidal(x+->exp1()^x,0.0,1.0,0.1,0.1,6,10)

(3)

Note that for some reason

%pi::Float

(4)

works, while

%e::Float

   Cannot convert from type Expression Integer to Float for value
   %e

fails. You have to use

exp1()$Float

(5)

instead.