how to calculate the integral of function y=sqrt(c*e​xp(d*x)+g/​x-1)?

Here, c,d and g are constants. I've tried quad=(F,a,b),but there is something wrong with the answer. i wrote function correctly,but answer shown contains "i" number. What's wrong with this? help me

[Matt Tearle]

Without seeing the code, it's hard to say what the issue is. Given there's a sqrt in the integrand, complex answers are possible.

Answer 1

[Matt Fig]

Taking the square root does that sometimes. If you want to check your answer, show us c,d,g,a and b. For some numbers we get a real answer:

c = 2; d = 3; g = 5;
y=@(x) sqrt(c*exp(d*x)+g./x-1)
quad(y,0,1)