Getting multiple outputs in one time

I have a function stiff(k), which outputs a matrix. I want to output stiff(k) for k=1 to 20, but I'm only able to do it by writing out each individul k value. Is there more efficient way to do this?

Answer 1

[Torsten]

A = arrayfun(@(k)stiff(k),1:20,'UniformOutput',0)

A = 1×20 cell array
    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}    {2×3 double}

function out = stiff(k)
  out = k*[1 2 3;4 5 6];
end