I suppose you could have some function like RPSqrt, for realpositivesqrt
which maps from non-negative reals to non-negative reals.
It would be an error to type RPSqrt(x) unless x were guaranteed to be
oretty much
explicitly in [0,oo].
Sqrt(x^2) under some conditions might be considered RPSqrt(
#30124 (System information, spkg-configure for Jupyter "notebook" package
and dependencies)
https://trac.sagemath.org/ticket/30124
#30123 (Repackage Sage's cropped threejs as a pip-installable package
jupyter-threejs-minimal)
https://trac.sagemath.org/ticket/30123
#30298 (Rewrite jupyter kernel
Hello,
I'm using SAGE 8.9 via CoCalc.
Calling eigenvectors_right() on a matrix m with entries in the number field
Q(i) returns some vectors with entries in Q(i), others with entries in
QQbar (see example below). I would have expected that applying
change_ring(QQbar) to such vectors would prod
On Thursday, August 6, 2020 at 4:07:11 AM UTC-4 Markus Wageringel wrote:
> Even if there are two possible choices, the result of the definite
> integral should be ±8, not 0. It is rather strange to pick the positive
> square root for half the integral and then (discontinuously) the negative
>
Even if there are two possible choices, the result of the definite integral
should be ±8, not 0. It is rather strange to pick the positive square root
for half the integral and then (discontinuously) the negative one for the
other half.
There is a ticket for exactly this integral, by the way:
