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## Problem with specific math function (x^2-1)/(x^2+1)

**From**: |
koleygr |

**Subject**: |
Problem with specific math function (x^2-1)/(x^2+1) |

**Date**: |
Mon, 22 May 2017 10:45:51 -0700 (PDT) |

Hi, I am trying to plot the above function.
My code is:
x=0:0.05:5;
f=@(x) (x.*x-1)/(x.*x+1);
y=f(x)
%Here it prints just one value of y and that's the problem!!!
plot(x,y,'r')
The next is the same but with simpler function and it works
f=@(x) x.*x;
y=f(x)
%Here it works fine!!!
plot(x,y,'r')
So, I think it is a bug or something
(version=3.8.2 on debian)
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**Problem with specific math function (x^2-1)/(x^2+1)**,
*koleygr* **<=**