Trapezoidal rule

Trapezoidal rule

Example : Find approximate value of the function 1/(1+x^2) when integrating fron 0 t0 1, with increment h-0.2

[0 1] = [0 0.2 0.4 0.6 0.8 1] for h = 0.2

Note that no of term is 6, no of interval is 5.

enter the function : 1/(1+x^2)

enter lower limit : 0

enter upper limit : 1

enter no of term : 6

ans =

0.7842407666