rref using complex numbers

I am trying to find the rref form of a matrix with imaginary components. Not sure if my lack of linear algebra is what's holding me back or my matlab knowledge. Below is my code.

clc

clear

node1 = [complex(.25,-.2) complex(0,.2) complex(12.46,-.9)]

node2 = [complex(0,.2) complex(.1,-.2) 0]

a = [node1; node2];

rref a

I'm getting these errors

Error using norm

First argument must be single or double.

Error in rat (line 57)

tol = 1.e-6*norm(X(isfinite(X)),1);

Error in rref (line 26)

[num, den] = rat(A);

Error in ecehomework7 (line 6)

rref a

yes this is for a homework assignment but I was specifically told I could use matlab in case that helps ease your consciousness, thanks in advance!

Answer 1

[David Hill]

node1 = [complex(.25,-.2) complex(0,.2) complex(12.46,-.9)];
node2 = [complex(0,.2) complex(.1,-.2) 0];
a = [node1; node2];
rref(a)

ans = 
   1.0000 + 0.0000i   0.0000 + 0.0000i  37.5366 + 1.8226i
   0.0000 + 0.0000i   1.0000 + 0.0000i  30.7584 -13.5565i

[Jackson Andrew]

Thanks!