$ whois matlab

Matlab

first released in 1984 · by Cleve Moler

$ guessprog --inspect matlab

year: 1984
paradigm: array oriented
family: other
memory: automatic gc
binding: dynamic
safety: weak

MATLAB(7)

AUTHORS: Cleve Moler
HISTORY: Cleve Moler, a numerical analyst at the University of New Mexico, wrote the first MATLAB ("MATrix LABoratory") in the late 1970s in Fortran. He wanted his students to use the LINPACK and EISPACK linear algebra libraries without having to write Fortran themselves. The interactive calculator spread from campus to campus, and in 1984 Moler, Jack Little and Steve Bangert founded MathWorks to sell a rewritten, commercial version in C.
USAGE: Widely used in engineering, science and academia, especially for signal processing, control systems and simulation together with its companion tool Simulink. It is commercial software, and open alternatives such as Python and Julia have taken part of its ground.
SEE ALSO: Matlab on Wikipedia ↗

$ cat matrices.m

% Everything is a matrix, and operations are vectorised
A = magic(4);                % 4x4 magic square
disp(sum(A))                 % column sums: all 34
disp(sum(A, 2)')             % row sums, transposed

x = linspace(0, 2*pi, 100);
y = sin(x).^2 + cos(x).^2;   % element-wise operators
fprintf('max error: %g\n', max(abs(y - 1)));

M = [4 -2; 1 1];
v = M \ [2; 3]               % solve M*v = [2; 3]