[scilab-Users] Strange behavior

[Jacco Kramer]

You defined your function to use the variables a and b. If you don't
pass these to the function, it will use the environment a and b. Since
you filled them with 7 and -1 the step before it, it uses them as input.


Now, when you call it without arguments, and without defining multiple
outputs it just does the first output (x=a+b), which is 7+-1 = 6. 

I'm not sure I explained correctly and clearly, but it's something along
these lines. 

-----Oorspronkelijk bericht-----
Van: Maki 1sy8 [mailto:debian1sy8 at gmail.com] 
Verzonden: maandag 3 november 2008 1:31
Aan: Scilab
Onderwerp: [scilab-Users] Strange behavior

Hi all.

With the following function I found in the function help
function [x,y]=myfct(a,b)
x=a+b
y=a-b
endfunction

I tried
-->c=3;d=4;
-->[a, b]= myfct(c, d)
b  =

  - 1.
 a  =

    7.

Why the following ???

-->myfct
 ans  =

    6.