MATLAB Answers

Cannot calculate integral function

6 views (last 30 days)
lvenG
lvenG on 20 Sep 2021
Commented: Star Strider on 20 Sep 2021
Help on this case. I am integrating a certain function with known upper and lower limits as per below but when I run it, the command window still shows an integral function and not a numerical value. Thanks and hoping for some help.
syms y
V = (2/3).*pi.*3.4.^3 .*(1-exp((-4.*100./300)*((1./y.^4)-(1./y.^2))));
B = int(V, y, 0, 10000);

Accepted Answer

Star Strider
Star Strider on 20 Sep 2021
If you want a numeric result, use vpaintegral (introduced in R2016b) instead of int. Not all expressions have analytic integrals.
syms y
V = (2/3).*pi.*3.4.^3 .*(1-exp((-4.*100./300)*((1./y.^4)-(1./y.^2))));
B = vpaintegral(V, y, 0, 10000)
B = 
.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!