Evaluate integral at specific value

1 view (last 30 days)
I have the following mathematical function f=5sin(x), I use the int(f) to obtain the integral of my expression. Is there a way for me to evaluate the result of the integral at a specifc value, lets say 4,32,
  3 Comments
Ahmed Abdulla
Ahmed Abdulla on 7 Jun 2021
Thank you Salah, i combined your answer with vpa to evaluate:
vpa(subs(I,x,a))

Sign in to comment.

Accepted Answer

Walter Roberson
Walter Roberson on 7 Jun 2021
syms x
f = 5*sin(x)
f = 
fint = int(f,x,0,x)
fint = 
a = 4.32
a = 4.3200
fa = subs(fint, x, a)
fa = 
If you are expecting a decimal value, then you are wanting to get an approximation at the location, rather than the value at the location.
double(fa)
ans = 6.9120

More Answers (0)

Products


Release

R2019a

Community Treasure Hunt

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

Start Hunting!

Translated by