What's wrong with this integral?

I get an error message typing this:

integral(@(z)(sin(z)*exp(1i*z)),0, 1)

Here is the error message:

Error using  * 
Inner matrix dimensions must agree.

Error in @(z)(sin(z)*exp(1i*z))

Error in integralCalc/iterateScalarValued (line 314)
              fx = FUN(t);

Error in integralCalc/vadapt (line 132)
          [q,errbnd] = iterateScalarValued(u,tinterval,pathlen);

Error in integralCalc (line 75)
      [q,errbnd] = vadapt(@AtoBInvTransform,interval);

Error in integral (line 88)
Q = integralCalc(fun,a,b,opstruct);

Answer 1

[Star Strider]

You likely need to vectorise it:

integral(@(z)(sin(z).*exp(1i*z)),0, 1)

Note the vectorised multiplication (.*). See Array vs. Matrix Operations for a full discussion.

Answer 2

[Roger Stafford]

You must define your integrand function so that it will accept a vector input. In this case that means put a dot in the multiplication symbol:

   integral(@(z)(sin(z).*exp(1i*z)),0, 1)