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## Re: how to make plot's y axis range larger?

**From**: |
Joao Cardoso |

**Subject**: |
Re: how to make plot's y axis range larger? |

**Date**: |
Wed, 01 Mar 2000 03:04:00 +0000 |

Shih Lin wrote:
>* *
>* Dear octave expert:*
>* *
>* when I tried sinc(x) , -10<x<10, , the y value near x=0 was be trancated,*
>* (no show to -1 or 1), how do I make it visible?,'*
does "NaN" means something to you? It means "Not A Number", and you can
get it, e.g., when you divide a zero by zero, so sin(0)/0 gives a NaN,
that gnuplot can't plot.
To "avoid" it, avoid the use of '0', as in x=linspace(-10,10,100);
y=sin(x)./x; plot(x,y) or, better, use the function 'sinc',
plot(x,sinc(x)).
Eric, you should do your homework alone :-)
Joao
PS-Eric, why does sin(x)./x does a different plot than sinc(x)?
>* *
>* need and thanks your tech help*
>* *
>* Eric*
>* *
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