octave crib

1. Octave examples

this page gathers some octave examples

$ octave
octave>

octave> x=2 % everything after the % is ignored

octave> pwd
ans = /home/roland/proj/coursera/machine-learning-ex4

octave> ls
ex4 ex4.pdf

octave> run ex4/ex4.m

octave> function f = f(x)
f = 3*x^3 + 2;
endfunction

octave> f(2)
ans = 26

octave> fib=ones(1,11);
octave> fib(1)=0;
octave> for i=3:11
octave>   fib(i)=fib(i-1)+fib(i-2);
octave> endfor
octave> fib

fib =
   0   1   1   2   3   5   8  13  21  34  55