Octave Mnl

Description

Octave is an open source Matlab-like computational package.

Basic Commands

• who - list variables
• clear - remove variables
• system - run unix command
• help cmd
• pwd, cd

Matrix

• M = [1 2 3; 4 5 6; 7 8 9]
• M(1,:) = first row; M(:,2) = second column
• C = A * B
• Functions: diag

Other Functions

• min

Looping

• For loop

for var = row_vector
  do something with var;
endfor

Scripts

• Use .m extension to run script directly by name.
• Leave out semicolons to print values.
• Comments are "#" or "%".

File I/O

• [fid, msg]=fopen(file, "rt"); # Open text file for read access
• [var, count] = fscanf(fid,"%f", [20,20]); # Read a [20,20] matrix of floats into var

-- TWiki Guest - 05 Jul 2006