Proposal looks good. Only one comment and one suggestion. -
Comment: You need to be very careful when taking the square root of an
expression. Check the degree to which assumptions propagate such as if
u and v are declared real does sqrt() know that sqrt(u**2+v**2) is also
real.
Suggestion: Consider a vector differential operator class (del operator)
and then overloading * and ^ so that if f is a scalar field and V a
vector field you can write -
gradient of scalar field = del * f
divergence of vector field = del * V
curl of vector field = del ^ V
Laplacian of scalar field = del * (del * f)
In the future vector differential operators could be more general than
del and an algebra of differential operators could be defined. For
example if L is a linear transformation (possibly a function of the
coordinates) and overload * so that L(V) = L * V then possible
differential operator could be -
(del * L) * V
or if M is another linear transformation
(del * L + M) * V
If defined correctly the Laplacian could be del * del.
On 04/01/2017 05:08 PM, szymon.mieszc...@gmail.com wrote:
Hi,
I just put my proposal on wiki page:
https://github.com/sympy/sympy/wiki/GSoC-2017-Application-Szymon-Mieszczak:-Implementation-of-multiple-types-of-coordinate-systems-for-vectors
If someone review it, I would be grateful.
Szymon
--
You received this message because you are subscribed to the Google
Groups "sympy" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to sympy+unsubscr...@googlegroups.com
<mailto:sympy+unsubscr...@googlegroups.com>.
To post to this group, send email to sympy@googlegroups.com
<mailto:sympy@googlegroups.com>.
Visit this group at https://groups.google.com/group/sympy.
To view this discussion on the web visit
https://groups.google.com/d/msgid/sympy/7a6bd606-015b-4946-b965-049f82bc3f10%40googlegroups.com
<https://groups.google.com/d/msgid/sympy/7a6bd606-015b-4946-b965-049f82bc3f10%40googlegroups.com?utm_medium=email&utm_source=footer>.
For more options, visit https://groups.google.com/d/optout.
--
You received this message because you are subscribed to the Google Groups
"sympy" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to sympy+unsubscr...@googlegroups.com.
To post to this group, send email to sympy@googlegroups.com.
Visit this group at https://groups.google.com/group/sympy.
To view this discussion on the web visit
https://groups.google.com/d/msgid/sympy/5d381db4-1360-55d0-f379-c8d037fd62cc%40gmail.com.
For more options, visit https://groups.google.com/d/optout.
