a=2
b=3
a*b
a+b
a/b
A=[1,2,3;4,5,6]
v=1:2:3
w=[7:8]
v*A
A*v'
w*A
u=[10:11,12]
u+v
u*v
u.*v
u*v'
u'*v
[A,w']
[A;u]
B=[u;v]
A+B
A*B
A*B'
A.*B

for(x=1:4) disp(x); endfor; 
s=0; for(x=[1,3,5,7]) s+=x; endfor; s

if (true) a=3; endif; a
if (a==3) a=6; elseif (a==4) a=7; else a=0; endif; a
if (a) a=10; else a=-1; endif; a

function kiir (a) disp(a); endfunction; 

function s=plusz(v)
s=0; for(x=v) s+=x; endfor;
endfunction;

[x,y] = foo(3,4)

A=ones(2)
A=zeros(3,4)
A=eye(5,4)
A=rand(3)
randi(3,2,5)

A(1,2)
A(:,3)
A([1,2],[2,3])