how to get function value?

98 views (last 30 days)
Ani Asoyan
Ani Asoyan on 3 Jun 2020
Commented: Ani Asoyan on 3 Jun 2020
Hi I want to evaluate function and its derivative at a=2 , how to do that?
syms a
b=2
e=0.9
q=1.2
g=2
k=3
d=0.5
f=(q*b*e/a-d*e)/((q^2)*(e^2)/a+2*e*g)
diff(f)

Accepted Answer

madhan ravi
madhan ravi on 3 Jun 2020
df(a) = diff(f)
df(2)
  5 Comments
Ani Asoyan
Ani Asoyan on 3 Jun 2020
oh I'm so bad at matlab :D .. thank you

Sign in to comment.

More Answers (1)

David Hill
David Hill on 3 Jun 2020
syms a;
b=2;
e=0.9;
q=1.2;
g=2;
k=3;
d=0.5;
f=(q*b*e/a-d*e)/((q^2)*(e^2)/a+2*e*g);
df=diff(f);
fvals=eval(subs(f,1:10));%evaluate f from 1:10 (if you want actual symetric value eleminate the eval function
dfvals=eval(subs(df,1:10));
  3 Comments
Ani Asoyan
Ani Asoyan on 3 Jun 2020
I agree,, David Hill , thanks for the effort, but I think I'll go with the other answer, sorry

Sign in to comment.

Community Treasure Hunt

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

Start Hunting!