Hey All!

Please let me know I am included within the accepted organization or not?

According to Karachi, Pakistan timezone last night was my GSoC'23 result.

Please guide me through the procedure how to check my GSoC'23 result.

Name :- Sumaiya Qureshi (Karachi, Pakistan)

I opted for Improvements to mathematics interaction with the desired
organization "Oppia" within Web category.

Let me know if you all sage developers want further information regarding
myself to search my result.

Regards,
Sumaiya.

On Wed, Apr 26, 2023, 11:22 PM 'Nasser M. Abbasi' via sage-devel <
sage-devel@googlegroups.com> wrote:

> I use sagemath to run the independent CAS integrations tests for Fricas,
> Giac and Maxima, since it is much easier to use the same script to all CAS
> systems instead of learning how to use each separate CAS. The result is put
> on this page <https://12000.org/my_notes/CAS_integration_tests/index.htm>.
>
> I found that sympy now can be used from sagemath.
>
> So I said, great. Instead of having separate script for sympy in python
> will use the same sagemath script and just change the name of the algorithm
> to 'sympy'. Makes life easier.
>
> But when I tried this on one test file, I found many integrals now fail,
> where they work using sympy directly in Python.
>
> I am not sure if this is because sympy is not yet fully yet supported in
> sagemath or if this is just a bug and overlooked support.
>
> For example, on this one file,  sympy used to score 84.66% passing score
> when used directly, but now in sagemath it scores 65.64%.
>
> This translates to about 30 more integrals failing in this file of 163
> integrals.
>
> Below will give one example. All seem to give the same exception
>
> NotImplementedError('conversion to SageMath is not implemented')
>
> Here is one example in sagemath 9.8
>
> var('A B a alpha b beta m n x ')
> integrate(x/((b*x^2+a)^m),x, algorithm='sympy')
>
> ---------------------------------------------------------------------------
> NotImplementedError                       Traceback (most recent call last)
> Cell In [2], line 1
> ----> 1 integrate(x/(b*x**Integer(3)+a)**Integer(2),x, algorithm='sympy')
>
> File ~/TMP/sage-9.8/src/sage/misc/functional.py:773, in integral(x, *args,
> **kwds)
>     648 """
>     649 Return an indefinite or definite integral of an object ``x``.
>     650
>    (...)
>     770
>     771 """
>     772 if hasattr(x, 'integral'):
> --> 773     return x.integral(*args, **kwds)
>     774 else:
>     775     from sage.symbolic.ring import SR
>
> File ~/TMP/sage-9.8/src/sage/symbolic/expression.pyx:13211, in
> sage.symbolic.expression.Expression.integral()
>   13209                 R = SR
>   13210         return R(integral(f, v, a, b, **kwds))
> > 13211     return integral(self, *args, **kwds)
>   13212
>   13213 integrate = integral
>
> File ~/TMP/sage-9.8/src/sage/symbolic/integration/integral.py:1063, in
> integrate(expression, v, a, b, algorithm, hold)
>    1061     if not integrator:
>    1062         raise ValueError("Unknown algorithm: %s" % algorithm)
> -> 1063     return integrator(expression, v, a, b)
>    1064 if a is None:
>    1065     return indefinite_integral(expression, v, hold=hold)
>
> File ~/TMP/sage-9.8/src/sage/symbolic/integration/external.py:69, in
> sympy_integrator(expression, v, a, b)
>      67 else:
>      68     result = sympy.integrate(ex, (v, a._sympy_(), b._sympy_()))
> ---> 69 return result._sage_()
>
> File ~/TMP/sage-9.8/src/sage/interfaces/sympy.py:216, in
> _sympysage_add(self)
>     214 s = 0
>     215 for x in self.args:
> --> 216     s += x._sage_()
>     217 return s
>
> File
> ~/TMP/sage-9.8/local/var/lib/sage/venv-python3.11.1/lib/python3.11/site-packages/sympy/core/basic.py:1959,
> in Basic._sage_(self)
>    1957 sympy_init()  # may monkey-patch _sage_ method into self's class
> or superclasses
>    1958 if old_method == self._sage_:
> -> 1959     raise NotImplementedError('conversion to SageMath is not
> implemented')
>    1960 else:
>    1961     # call the freshly monkey-patched method
>    1962     return self._sage_()
>
>
> Here is same integral in sympy itself. You see it works.
>
> >python
> Python 3.10.9 (main, Dec 19 2022, 17:35:49) [GCC 12.2.0] on linux
> >>> from sympy import *
> >>> A,B,a,alpha,b,beta,m,n,x= symbols('A B a alpha b beta m n x ')
> >>> integrate(x/(b*x**3+a)**2,x)
>
> x**2/(3*a**2 + 3*a*b*x**3) + RootSum(729*_t**3*a**4*b**2 + 1, Lambda(_t,
> _t*log(81*_t**2*a**3*b + x)))
>
>
> The sympy version is 1.11.1 in both cases, all on Linux.
>
> age: ver = installed_packages()
> sage: ver['sympy']
> '1.11.1'
>
> Will give the list of failed integrals in this one file in a follow up
> post.
>
> --Nasser
>
>
>
>
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>

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