Inner matrix dimensions must agree.

I am trying to integrate the function

f1 = @(x) (1-2*x)*(exp(-i*x))
q = integral(f1,0,1)

however this throws me an error

Error using  * 
Inner matrix dimensions must agree.

Error in @(x,n)(1-2*x)*(exp(-i*n*x))

Error in @(x)f1(x,1)

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);

I was hopng if somebody could help me with this.

Best Regards Ishan

Answer 1

[Roger Wohlwend]

Try

f1 = @(x) (1-2*x).*(exp(-i*x))