Converting rectangular form complex numbers into polar form

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

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

Z = 4 + j 5

Answer 1

[Robin Gangopadhya]

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)

[Dalton Houghton-Schaffer]

This works thank you so much!! Rho represents what exactly?

[Dwij Padia]

Rho is magnitude

Answer 2

[Robin Gangopadhya]

it is the absolute value of the complex number a+jb= sqrt(a^2+b^2)