Re: not be plotted (or not correctly be plotted)on general function, need help

[Mirek Kwasniak]

On Thu, Jan 01, 1998 at 03:17:46AM -0800, Eric wrote:
> Dear matlab/octave expert:
>     in simple program
> f=0:0.01:3;
> 
> y=abs((i*2*pi*f+20*pi)/(i*2*pi*f+2*pi));
> 
> plot(f,y)
> 
> I get the error response:
> 
> error:__plt2vv__: vector lengths must match
> 
> error: evaluating if command near line 55, column 3

f=0:0.01:3;
y=abs((i*2*pi*f+20*pi)/(i*2*pi*f+2*pi))
y = 4.6804

:)

It should be:

y=abs((i*2*pi*f+20*pi)./(i*2*pi*f+2*pi));
                      ^^

Read about / and ./ operators.

Mirek



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