Write a program which calculates the integral of the function
f(x)=A*exp(-x^2)+(B*x^n)/m!
on the interval from a to b (0a.
Call the function Integr() to evaluate the integral.
Your main program should be followed by three functions:
double Integr(double n, int m, double A, double B, double a, double b)
double func(double x, double n, int m, double A, double B)
double mfact(int m)
................................................................
Your output should look like this:
Enter the exponents (double)n and (int)m: 1.25 5
Enter the coefficients A and B: 2.1 -3.15
Enter the bounds for the integration interval, a < b : 1.2 4.05
Integrate f(x) on [a,b]
Enter the number of trapezoids: 10000
The length of the subinterval del_x = 0.000285
The value of the integral is -0.0869732 .