%To view plots after 'plot' (and other plot-producing commands) this command must follow: 'print -dpng some_unique_plot_name.png;'
%It exports current plot to png image which then is sent to your browser
%GNU Octave 4.2.2

close all;
clear all;
x=round(50*rand(5,4));
y=round(50*rand(4,5));
p=x*y;

a=inv(p);
x
y
p
a