On Wed, Nov 13, 2019 at 6:15 PM E. Madison Bray <erik.m.b...@gmail.com> wrote:
>
> Testing this on Windows + Python 3 for the first time in a while.
> During the docbuild it crashes while generating one of the plots, with
> some call to maxima resulting in:
>
> RuntimeError: ECL says: #<a FLOATING-POINT-OVERFLOW>
>
> I'll see if I can get this in any other context. Has anyone else seen
> problems like this on Python 3?
How to reproduce:
sage: f = piecewise([((0,pi/2), -1), ((pi/2,pi), 2)])
sage: s5 = f.fourier_series_partial_sum(5)
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call last)
<ipython-input-2-9ea0d6ecd263> in <module>()
----> 1 s5 = f.fourier_series_partial_sum(Integer(5))
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/expression.pyx
in sage.symbolic.expression._eval_on_operands.new_f
(build/cythonized/sage/symbolic/expression.cpp:67434)()
12688 new_args = list(ex._unpack_operands())
12689 new_args.extend(args)
> 12690 return f(ex, *new_args, **kwds)
12691 return new_f
12692
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/functions/piecewise.py
in fourier_series_partial_sum(self, parameters, variable, N, L)
1347 L = (self.domain().sup() - self.domain().inf()) / 2
1348 x = self.default_variable()
-> 1349 a0 = self.fourier_series_cosine_coefficient(0, L)
1350 result = a0/2 +
sum([(self.fourier_series_cosine_coefficient(n, L)*cos(n*pi*x/L) +
1351
self.fourier_series_sine_coefficient(n, L)*sin(n*pi*x/L))
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/expression.pyx
in sage.symbolic.expression._eval_on_operands.new_f
(build/cythonized/sage/symbolic/expression.cpp:67434)()
12688 new_args = list(ex._unpack_operands())
12689 new_args.extend(args)
> 12690 return f(ex, *new_args, **kwds)
12691 return new_f
12692
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/functions/piecewise.py
in fourier_series_cosine_coefficient(self, parameters, variable, n, L)
1179 a = interval.lower()
1180 b = interval.upper()
-> 1181 result += (f*cos(pi*x*n/L)).integrate(x, a, b)
1182 return SR(result/L0).simplify_trig()
1183
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/expression.pyx
in sage.symbolic.expression.Expression.integral
(build/cythonized/sage/symbolic/expression.cpp:64542)()
12370 R = ring.SR
12371 return R(integral(f, v, a, b, **kwds))
> 12372 return integral(self, *args, **kwds)
12373
12374 integrate = integral
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/integration/integral.py
in integrate(expression, v, a, b, algorithm, hold)
921 return indefinite_integral(expression, v, hold=hold)
922 else:
--> 923 return definite_integral(expression, v, a, b, hold=hold)
924
925
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/function.pyx
in sage.symbolic.function.BuiltinFunction.__call__
(build/cythonized/sage/symbolic/function.cpp:12262)()
1025 res = self._evalf_try_(*args)
1026 if res is None:
-> 1027 res = super(BuiltinFunction, self).__call__(
1028 *args, coerce=coerce, hold=hold)
1029
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/function.pyx
in sage.symbolic.function.Function.__call__
(build/cythonized/sage/symbolic/function.cpp:6938)()
484 for i from 0 <= i < len(args):
485 vec.push_back((<Expression>args[i])._gobj)
--> 486 res = g_function_evalv(self._serial, vec, hold)
487 elif self._nargs == 1:
488 res = g_function_eval1(self._serial,
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/function.pyx
in sage.symbolic.function.BuiltinFunction._evalf_or_eval_
(build/cythonized/sage/symbolic/function.cpp:13412)()
1113 res = self._evalf_try_(*args)
1114 if res is None:
-> 1115 return self._eval0_(*args)
1116 else:
1117 return res
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/integration/integral.py
in _eval_(self, f, x, a, b)
195 for integrator in self.integrators:
196 try:
--> 197 A = integrator(*args)
198 except (NotImplementedError, TypeError):
199 pass
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/symbolic/integration/external.py
in maxima_integrator(expression, v, a, b)
44 result = maxima.sr_integral(expression,v)
45 else:
---> 46 result = maxima.sr_integral(expression, v, a, b)
47 return result._sage_()
48
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/misc/lazy_import.pyx
in sage.misc.lazy_import.LazyImport.__getattr__
(build/cythonized/sage/misc/lazy_import.c:3536)()
319 True
320 """
--> 321 return getattr(self.get_object(), attr)
322
323 # We need to wrap all the slot methods, as they are not forwarded
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/misc/lazy_import.pyx
in sage.misc.lazy_import.LazyImport.get_object
(build/cythonized/sage/misc/lazy_import.c:2347)()
186 if likely(self._object is not None):
187 return self._object
--> 188 return self._get_object()
189
190 cpdef _get_object(self):
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/misc/lazy_import.pyx
in sage.misc.lazy_import.LazyImport._get_object
(build/cythonized/sage/misc/lazy_import.c:2586)()
218 elif self._at_startup and not startup_guard:
219 print('Option ``at_startup=True`` for lazy import
{0} not needed anymore'.format(self._name))
--> 220 self._object = getattr(__import__(self._module, {},
{}, [self._name]), self._name)
221 name = self._as_name
222 if self._deprecation is not None:
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/interfaces/maxima_lib.py
in <module>()
106 ecl_eval("(require 'maxima \"{}\")".format(MAXIMA_FAS))
107 else:
--> 108 ecl_eval("(require 'maxima)")
109 ecl_eval("(in-package :maxima)")
110 ecl_eval("(setq $nolabels t))")
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/libs/ecl.pyx
in sage.libs.ecl.ecl_eval (build/cythonized/sage/libs/ecl.c:10133)()
1323
1324 #convenience routine to more easily evaluate strings
-> 1325 cpdef EclObject ecl_eval(str s):
1326 """
1327 Read and evaluate string in Lisp and return the result
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/libs/ecl.pyx
in sage.libs.ecl.ecl_eval (build/cythonized/sage/libs/ecl.c:10072)()
1338 cdef cl_object o
1339 o=ecl_safe_read_string(str_to_bytes(s))
-> 1340 o=ecl_safe_eval(o)
1341 return ecl_wrap(o)
1342
/home/embray/src/sagemath/sage-python3/local/lib/python3.7/site-packages/sage/libs/ecl.pyx
in sage.libs.ecl.ecl_safe_eval
(build/cythonized/sage/libs/ecl.c:5130)()
347 if ecl_nvalues > 1:
348 s = si_coerce_to_base_string(ecl_values(1))
--> 349 raise RuntimeError("ECL says: {}".format(
350 char_to_str(ecl_base_string_pointer_safe(s))))
351 else:
RuntimeError: ECL says: #<a FLOATING-POINT-OVERFLOW>
> On Tue, Nov 12, 2019 at 10:45 PM 'Justin C. Walker' via sage-release
> <sage-release@googlegroups.com> wrote:
> >
> >
> >
> > > On Nov 10, 2019, at 15:59 , Volker Braun <vbraun.n...@gmail.com> wrote:
> > >
> > > As always, you can get the latest beta version from the "develop" git
> > > branch. Alternatively, the self-contained source tarball is at
> > > http://www.sagemath.org/download-latest.html
> >
> > Built from a fresh clone of the develop tree on three macOS platforms:
> > 10.11.6 (mid-2015 MBP, Quad-core Core i7), 10.13.6 (2017 iMac Pro, 18-core
> > Xeon W), 10.14.6 (2017 MBP, Quad-core Core i7). All builds completed w/o
> > problems.
> >
> > Testing (‘ptestlong’) went as follows:
> >
> > 10.11.6: all tests passed!
> > 10.13.6: one failure, good ol’ polynomials.pyx. Stand-alone runs passed.
> > 10.14.6: all tests passed!
> >
> > Justin
> >
> > --
> > Justin C. Walker, Curmudgeon at Large
> > Institute for the Absorption of Federal Funds
> > -----------
> > I'm beginning to like the cut of his jibberish.
> > -----------
> >
> >
> >
> > --
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