Re: newbye question

[Jonathan C. Webster]

Tiago Lage Payne de Padua wrote:
> what is wrong in this polinomiun?
> ret=v(7) * r^6 + v(6) * r^5 + v(5) * r^4 + v(4) * r^3 + v(3) * r^2 +
> v(2)*r + v(1);
>
> when I use values that ret must return zero, ret =  -1.7764e-15

Octave uses a "double precision" rendition of "real" 
numbers.  That is what you are seeing.

Jonathan




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