SUB
Hello everyone, what is the usual way to "like" a mail in the maillist and
subscribing to the thread ?
By sending a message it adds me to the "Participants" in the webapp which
is neat (I can then search for my messages)
I could do it in the webapp but not everybody will see it
Le mer. 19 mai 2021 à 17:02, David Lowry-Duda <da...@lowryduda.com> a
écrit :
> > To frame the problem, let us try to solve the equation x ** 2 == 1/2
> > using sympy:
> >
> > >>> from sympy import Eq, solve, symbols, S
> > >>> x = symbols("x")
> > >>> solve(Eq(x**2, S(1)/2))
> > [-sqrt(2)/2, sqrt(2)/2]
> >
> > that worked well, but actually we would like to write the last line
> simply as
> >
> > >>> solve(x**2 == 1/2)
>
> This is essentially how this would be written in sagemath (a CAS
> exposing various FOSS math software behind a unified python-based
> interface). More about sagemath can be found at https://www.sagemath.org/
>
> In sage, this would be written
>
> solve([x**2 == 1/2], x)
>
> The additional "x" is because sage also accepts things like
>
> y = var('y')
> solve([x**2 == y], x) # solve for x in terms of other variables
>
> Large amounts of sage are written in python, including essentially the
> whole symbolic mathematics stack. I'm personally content with using a
> CAS like sage when I want to manipulate mathematics and keeping symbolic
> math separate from my default python interpreter.
>
> - DLD
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