loading script file (function) in octave

[Siddhartha]

Hey guys, you probably have gotten... well a bunch of emails
from me already.

But i'm trying to load a script file called xdot.m, and I
have the first line commented out...yet still it gives me
the message:

octave-3.0.1:29> xdot
warning: function name `f' does not agree with function file
name `/Users/chemistry/xdot.m'
error: `x' undefined near line 9 column 17
error: evaluating binary operator `*' near line 9, column 16
error: evaluating binary operator `-' near line 9, column 14
error: evaluating binary operator `+' near line 9, column 22
error: evaluating assignment expression near line 9, column
9
error: called from `xdot' in file `/Users/chemistry/xdot.m'

can anyone tell me how to fix this?

thanks in advance!
Siddhartha Owens