// Random matrix
a=grand(20, 20, 'nor', 0.0, 1.0);
h=scf();
h.color_map=hotcolormap(256);
Matplot2(a, 0.1);
colorbar(min(a), max(a));

// Simple 2x2 matrix
b=zeros(2,2);
b(1,1)=1;
b(1,2)=2;
h=figure();
h.color_map=jetcolormap(10);
Matplot2(b, 0.1);
colorbar(min(b), max(b));

// Matrix with very large and very low values
c=ones(2,2);
c(1,1)=-100;
c(1,2)=100;
h=figure();
h.color_map=jetcolormap(10);
Matplot2(c, 0.1);
colorbar(min(c), max(c));