MATLAB/OCTAVE TUTORIAL from

%or a:b = from a to b
%1:5 = [1 2 3 4 5]
%vect(1:2) = [3 4]
1:5
vect(1:2)
%move by a step other than 1 by using 2 colons
10:2:20 %from 10 to 20 by 2s
%end means the last element of a row or column
%so vect(2:end) = [4 5];
vect(2:end)
%an apostrophe ' transposes a vector or matrix
%vect' = [3
% 4
% 5]
vect'
%concatenation
x = [1 2 3]
y = [4 5 6]
[x y] %horizontal
[x; y] %vertical
%basic operators, +, -, *, /
%on scalars these work as expected
3 + 4
2 * 2
% ^ is the power operator
2^3
%on vectors and matrices they use linear algebra
x = [1 2 3]
y = [4 5 6]
x*y' %dot product
x'*y %cross product
%if you want to mutliply and divide, element by element use dot functions, .* ./ .^
x.*y %note the dot
%logical operators
% >,