Solving Integral in matlab

I need to solve this integral in matlab
Where a=1, b=0.71, c=0.53.
I have tried this in matlab
syms s
a=1;
b=0.71;
c=0.53;
f = 1/((s+a^2)*sqrt(((s+a)^2)*((s+b)^2)*((s+c)^2)));
F = int(f, 0, inf)
but I am unable to solve the problem

Answers (2)

There are cases when int is unable to compute the value of definite integral. In such cases, use vpa to obtain the approximate numerical value
syms s
a = 1;
b = 0.71;
c = 0.53;
f = 1/((s+a^2)*sqrt(((s+a)^2)*((s+b)^2)*((s+c)^2)));
F = int(f, 0, inf);
val1 = vpa(F)
val1 = 
0.67917589608295134074024322188586
You can use vpaintegral directly as well -
val2 = vpaintegral(f,0,inf)
val2 = 
0.679176
Torsten
Torsten on 17 Apr 2023
Edited: Torsten on 17 Apr 2023
syms s
a=sym('1');
b=sym('71/100');
c=sym('53/100');
f = 1/((s+a^2)*(s+a)*(s+b)*(s+c));
F = a*b*c/2*int(f)
F = 
limit(F-subs(F,s,0),s,Inf)
ans = 

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Asked:

on 17 Apr 2023

Edited:

on 17 Apr 2023

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