The resultant and gcd works well over rational but not real or complex !

R.<x,y>=PolynomialRing(RR,2) a=x^2+y b=x-y^2 a.resultant(b) a.gcd(b) this does not worl where with QQ, it works

anyone has a idea ?

1 | initial version |

The resultant and gcd works well over rational but not real or complex !

R.<x,y>=PolynomialRing(RR,2) a=x^2+y b=x-y^2 a.resultant(b) a.gcd(b) this does not worl where with QQ, it works

anyone has a idea ?

2 | Code formatting. Typos. |

The resultant and gcd ~~works ~~work well over rational but not over real or ~~complex !~~complex!

R.<x,y>=PolynomialRing(RR,2) a=x^2+y b=x-y^2

```
R.<x,y> = PolynomialRing(RR,2)
a = x^2 + y
b = x - y^2
a.resultant(b)
a.gcd(b)
```~~this ~~

This does not ~~worl where ~~work while with QQ, it ~~works~~

anyone works. Anyone has ~~a idea ?~~an idea?

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