2705.sagews

x=var('x')

solve([infinity==x^(1/3)],x)

[x == +Infinity]

solve([infinity==x^(3/2)],x)

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_23.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("c29sdmUoW2luZmluaXR5PT14XigzLzIpXSx4KQ=="),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmptH3j2b/___code___.py", line 3, in <module> exec compile(u'solve([infinity==x**(_sage_const_3 /_sage_const_2 )],x)' + '\n', '', 'single') File "", line 1, in <module> File "/usr/local/sage2/local/lib/python2.6/site-packages/sage/symbolic/relation.py", line 622, in solve ans = f[0].solve(*args,**kwds) File "expression.pyx", line 7534, in sage.symbolic.expression.Expression.solve (sage/symbolic/expression.cpp:27461) File "/usr/local/sage2/local/lib/python2.6/site-packages/sage/symbolic/relation.py", line 457, in string_to_list_of_solutions v = symbolic_expression_from_maxima_string(s, equals_sub=True) File "/usr/local/sage2/local/lib/python2.6/site-packages/sage/calculus/calculus.py", line 1633, in symbolic_expression_from_maxima_string return symbolic_expression_from_string(s, syms, accept_sequence=True) File "/usr/local/sage2/local/lib/python2.6/site-packages/sage/calculus/calculus.py", line 1801, in symbolic_expression_from_string return parse_func(s) File "parser.pyx", line 516, in sage.misc.parser.Parser.parse_sequence (sage/misc/parser.c:3846) File "parser.pyx", line 531, in sage.misc.parser.Parser.parse_sequence (sage/misc/parser.c:3735) File "parser.pyx", line 593, in sage.misc.parser.Parser.p_sequence (sage/misc/parser.c:4342) File "parser.pyx", line 624, in sage.misc.parser.Parser.p_list (sage/misc/parser.c:4634) File "parser.pyx", line 602, in sage.misc.parser.Parser.p_sequence (sage/misc/parser.c:4446) File "parser.pyx", line 692, in sage.misc.parser.Parser.p_eqn (sage/misc/parser.c:5169) File "parser.pyx", line 728, in sage.misc.parser.Parser.p_expr (sage/misc/parser.c:5456) File "parser.pyx", line 761, in sage.misc.parser.Parser.p_term (sage/misc/parser.c:5681) File "parser.pyx", line 803, in sage.misc.parser.Parser.p_factor (sage/misc/parser.c:6044) File "parser.pyx", line 830, in sage.misc.parser.Parser.p_power (sage/misc/parser.c:6158) File "parser.pyx", line 893, in sage.misc.parser.Parser.p_atom (sage/misc/parser.c:6739) File "parser.pyx", line 728, in sage.misc.parser.Parser.p_expr (sage/misc/parser.c:5456) File "parser.pyx", line 767, in sage.misc.parser.Parser.p_term (sage/misc/parser.c:5756) File "parser.pyx", line 803, in sage.misc.parser.Parser.p_factor (sage/misc/parser.c:6044) File "parser.pyx", line 834, in sage.misc.parser.Parser.p_power (sage/misc/parser.c:6204) File "element.pyx", line 1506, in sage.structure.element.RingElement.__pow__ (sage/structure/element.c:11767) File "element.pyx", line 2867, in sage.structure.element.generic_power_c (sage/structure/element.c:20474) NotImplementedError: non-integral exponents not supported