How can I perform an operation on each element of a vector individually using a for loop?

I have impedance values from a separate file saved as a vector, the second column is the magnitude and the third column is the phase. I want to convert the magnitude and phase to compelx form for a set of frequency values, but when I try to do it for every frequency value it results in a single impedance value which is not what I want. This is what my code looks like right now. My issue is with the second for loop.

%Frequency from scan

Sweep;

for k=2:1:50

F(:,k)

s=2*pi*F*i;

end

%Impedance from scan, converted to complex

for j=1:1:49

Zp=Zp(j,2)*cos(Zp(j,3))+i*Zp(j,2)*cos(Zp(j,3))

end

%Line Impedance Calculations

LineImpedanceCalculation;

%Impedance Matrix Formulation

num6=0*F;

den6=1;

sys6=num6/den6;

num7=0*F;

den7=1;

sys7=num7/den7;

%Node 1

Z11=Zp+sys1+sys3

Z12=sys1+sys6+sys7

Z13=sys3+sys6+sys7

%Node 2

Z21=sys1+sys6+sys7

Z22=Zp+sys2+sys1

Z23=sys2+sys6+sys7

%Node 2

Z31=sys3+sys6+sys7;

Z32=sys2+sys6+sys7;

Z33=Zp+sys2+sys1;

%Final Impedance Matrix

Zmat = [Z11; Z21; Z31]

%Admittance Matrix and Eigenvalues

Ymat = inv(Zmat)

X=eig(Ymat)

Answer 1

[David Hill]

No loop needed.

[a,b]=pol2cart(Zp(:,3),Zp(:,2));
Zp=a+b.*i;

[Julia Hariharan]

Thank you! I will try this now and let you know if it works.

[Julia Hariharan]

That worked! I have some other issues with my code, but this one is resolved - thanks!