Z must be size 2x2 or greater. HELP

A real amateur here so any real help would be appreciated. I keep getting that error code for this script

kRx = linspace(0,10);

kRz = linspace(0,10);

kRy = 0;

kR = kRx + kRy + kRz;

[kRx,kRz] = meshgrid(kRx,kRz);

T1 = cos(kR) + kR .* sin(kR);

T2 = kR.^2.*cos(kR);

T3 = T1 - T2;

T4 = T3*cos(kRz);

T5 = T4 ./ (kR).^3;

contourf(kRx,kRz,T5,500)

-----------------------------------------

Any help would be really appreciated!

Answer 1

[Vivek Selvam]

1. T5 needs to be a matrix but is a vector. Check size(T5).

You would want to change the order of these lines from

kR = kRx + kRy + kRz;
[kRx,kRz] = meshgrid(kRx,kRz);

to

[kRx,kRz] = meshgrid(kRx,kRz);
kR = kRx + kRy + kRz;

2. T5 formula would create Infinity since kR can be 0.

kRx = linspace(0.1,10) and same for kRz should fix that.

Answer 2

[Azzi Abdelmalek]

T5 should have the same size as kRx and kRz