plot the integral of function

i want to calculate and plot the integral of this function , can anyone help me ?

Answer 1

[madhan ravi]

If you want specific help post what you tried:

fun = @(theta).... your function without integral
integral(fun,0,pi/2)

[clear marklina]

thanks mr madhan for your answer and how can i plot it ?

[madhan ravi]

Anytime :)

https://in.mathworks.com/matlabcentral/answers/322915-how-to-plot-an-integral

[madhan ravi]

Clear Marklina's answer moved here for consistency:

i'm trying this,but it doesn't give the result :

 f=@(theta)((cos(pi/2*cos(theta))^(2))/sin(theta));
 integral(f,0,pi/2)

[madhan ravi]

Try this:

 f=@(theta)((cos((pi./2).*cos(theta)).^(2))./sin(theta));
 integral(f,0,pi/2)

[clear marklina]

thank you mr madhan, it works and give sto me ans=0.6094, , can you help me how can i plot this integral !

[madhan ravi]

use cumtrapz() but I did all the experiments I could but breaking this problem was hectic for me...