[scilab-Users] Plot of Step Function

[François Vogel]

Your function foo returns a *scalar*:

-->size(foo(x))
  ans  =

     1.    1.

F.


Klaus Pieper said on 02/11/2008 11:26:
> Hi,
> 
> Trying out the example from from 
> http://www.scilab.org/doc/intro/node25.html
> 
> -->deff('[x]=foo(y)','if y>0 then, x=1; else, x=-1; end')
> -->x=-1:0.1:1
> -->plot(x,foo(x))
> 
> I would expect the graph of a step function jumping from -1 to 1 at 0. 
> Instead I get a constant function y == -1 for -1 <= x <= 1.
> 
> What's going wrong?
> 
> Klaus
> 
> 
>