I cannot figure this out! The diff command is working fine, by why are the following two commands not working as expected?
sage: diff(sin(x^2),x)
2*x*cos(x^2)
sage: factor(8+27*x^3)
x^3
sage: latex(factor(8+27*x^3))
x^{3}
It seems you are computing in polynomials over the finite field with two elements.
In a fresh Sage session, factor(8+27*x^3) outputs (9*x^2 - 6*x + 4)*(3*x + 2).
But if you compute in polynomials over GF(2), you would just get x^3.
sage: R = PolynomialRing(GF(2),'x')
sage: x = R.gen()
sage: factor(8+27*x^3)
x^3
Okay, I just inserted a reset() command before this call and it's now working. THANKS!
Asked: 2014-08-08 20:04:42 +0100
Seen: 256 times
Last updated: Aug 09 '14
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Hello, which version of sage are you using ? Did you type something before these lines ?