How to integrate a symbolic vector?

If f=exp(t^2)*cos(t) then i can integrate 'f' using integral command (integral (f,0,1) ), but if 'F' is a vector (having elements similar to 'f' )then how can i integrate it? I am using same command but the answer is symbolic i.e still having 't'. I am not getting how to use trapz command. Your cooperation will be appreciated. Thanks in advance.

Kind Regards Bibigul

Answer 1

[KSSV]

You should be having the values of t ..substitute those values in the integral expression using subs....convert the result into double using double and then call trapz .

[Bibigul]

@KSSV in my problem f=[exp(t^2)*cos(t)+9sin (t)+3exp(t^2), cos(t)-sin(t)*exp(t^2), exp(t^2)] and t=[0,1]. I have to solve int(f) from 0 to 1 and answer should be a vector. as per your advice i did the following f0=trapz(double(subs(f,t,0))); f1=trapz(double(subs(f,t,1))); now f0 and f1 are scalar. but in my problem solution must be a vector.

[KSSV]

f{1} = @(t) exp(t.^2).*cos(t)+9*sin(t)+3.*exp(t.^2) ;
 f{2} = @(t) cos(t)-sin(t).*exp(t.^2) ;
 f{3} = @(t) exp(t.^2) ;

   I = zeros(size(f)) ;
   for i = 1:length(f)
       I(i) = integral(f{i},0,1) ;
   end
  A = trapz(I) ;