Hola,all!
When I use the function solve(),an error occur and I fail to find
solutions.
Needing help!
CODE:
solve(x,x)
OUT:
UnicodeEncodeError Traceback (most recent call last)
<ipython-input-1-6e1b29585f6f> in <module> ----> 1 solve(x,x)
/opt/sagemath-9.3/local/lib/python3.7/site-packages/sage/symbolic/relation.py
in solve(f, *args, **kwds) 1041 1042 if is_Expression(f): # f is a single
expression -> 1043 return _solve_expression(f, x, explicit_solutions,
multiplicities, to_poly_solve, solution_dict, algorithm, domain) 1044 1045
if not isinstance(f, (list, tuple)):
/opt/sagemath-9.3/local/lib/python3.7/site-packages/sage/symbolic/relation.py
in _solve_expression(f, x, explicit_solutions, multiplicities,
to_poly_solve, solution_dict, algorithm, domain) 1280 1281 # from here on,
maxima is used for solution -> 1282 m = ex._maxima_() 1283 P = m.parent()
1284 if explicit_solutions:
/opt/sagemath-9.3/local/lib/python3.7/site-packages/sage/symbolic/expression.pyx
in sage.symbolic.expression.Expression._maxima_
(build/cythonized/sage/symbolic/expression.cpp:7963)() 1020 # Maybe not
such a great idea because the "default" interface is another one 1021 from
sage.calculus.calculus import maxima -> 1022 return super(Expression,
self)._interface_(maxima) 1023 else: 1024 return super(Expression,
self)._interface_(session)
/opt/sagemath-9.3/local/lib/python3.7/site-packages/sage/structure/sage_object.pyx
in sage.structure.sage_object.SageObject._interface_
(build/cythonized/sage/structure/sage_object.c:5480)() 678 except
(KeyError, ValueError): 679 pass --> 680 nm = I.name() 681 init_func =
getattr(self, '_%s_init_' % nm, None) 682 if init_func is not None:
/opt/sagemath-9.3/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:3876)() 326 True 327 """ --> 328
return getattr(self.get_object(), attr) 329 330 # We need to wrap all the
slot methods, as they are not forwarded
/opt/sagemath-9.3/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:2436)() 188 if
likely(self._object is not None): 189 return self._object --> 190 return
self._get_object() 191 192 cpdef _get_object(self):
/opt/sagemath-9.3/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:2710)() 221 print(f"Option
``at_startup=True`` for lazy import {self._name} not needed anymore") 222
try: --> 223 self._object = getattr(__import__(self._module, {}, {},
[self._name]), self._name) 224 except ImportError as e: 225 if
self._feature:
/opt/sagemath-9.3/local/lib/python3.7/site-packages/sage/interfaces/maxima_lib.py
in <module> 88 from sage.symbolic.ring import SR 89 ---> 90 from
sage.libs.ecl import EclObject, ecl_eval 91 92 from .maxima_abstract import
(MaximaAbstract, MaximaAbstractFunction,
/opt/sagemath-9.3/local/lib/python3.7/site-packages/sage/libs/ecl.pyx in
init sage.libs.ecl (build/cythonized/sage/libs/ecl.c:13899)() 1398 return
ecl_wrap(o) 1399 -> 1400 init_ecl()
/opt/sagemath-9.3/local/lib/python3.7/site-packages/sage/libs/ecl.pyx in
sage.libs.ecl.init_ecl (build/cythonized/sage/libs/ecl.c:5084)() 280 (setf
(logical-pathname-translations "TMP") 281 '(("**;*.*" "%s/**/*.*"))) -->
282 """ % str_to_bytes(str(ECL_TMP)))) 283 284 # We define our own error
catching eval, apply and funcall/
/opt/sagemath-9.3/local/lib/python3.7/site-packages/sage/cpython/string.pxd
in sage.cpython.string.str_to_bytes
(build/cythonized/sage/libs/ecl.c:11601)() 75 if isinstance(s, bytes): 76
return s ---> 77 return _str_to_bytes(s, encoding, errors)
UnicodeEncodeError: 'utf-8' codec can't encode characters in position
26-27: surrogates not allowed
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