MATLAB: Converting polar form complex numbers into rectangular form

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I am having trouble converting polar form complex numbers into rectangular form by writing a MATLAB script file.

I'm not fimular with MATLAB keywords but need to use this to prove my answers.

Z = 0.5 angle( pi / 4 )

Z = 0.5 angle( – 45 degrees )

"Converting polar form complex numbers into rectangular form"

z=0.5;theta=pi/4;
[X,Y]=pol2cart(theta,z)

Result:

X =
    0.3536
Y =
    0.3536

Manually:

You could have found this by searching right here(some one answered in 2014)...does it work for you?

x=2+3j

rho=abs(x)

theta=angle(x)

%-------------------

x=rho*exp(j*theta)

r = abs(z);
theta = atan2(imag(z),real(z));

Also...

r = abs(z);
theta = angle(z);