What the? ---------------------------------------------------------------------- | Sage Version 4.3.5, Release Date: 2010-03-28 | | Type notebook() for the GUI, and license() for information. | ---------------------------------------------------------------------- sage: a= matrix([[2,2,I],[2,2,-I],[I,-I,0]]).determinant(); a 8 sage: a^(-1/2) --------------------------------------------------------------------------- TypeError Traceback (most recent call last)
/Users/arai021/Dropbox/sage_work/<ipython console> in <module>() /Applications/sage/local/lib/python2.6/site-packages/sage/symbolic/ expression.so in sage.symbolic.expression.Expression.__pow__ (sage/ symbolic/expression.cpp:11892)() /Applications/sage/local/lib/python2.6/site-packages/sage/rings/ number_field/number_field_element.so in sage.rings.number_field.number_field_element.NumberFieldElement.__pow__ (sage/rings/number_field/number_field_element.cpp:10038)() /Applications/sage/local/lib/python2.6/site-packages/sage/symbolic/ power_helper.so in sage.symbolic.power_helper.try_symbolic_power (sage/ symbolic/power_helper.cpp:633)() /Applications/sage/local/lib/python2.6/site-packages/sage/symbolic/ power_helper.so in sage.symbolic.power_helper.try_symbolic_power (sage/ symbolic/power_helper.cpp:509)() /Applications/sage/local/lib/python2.6/site-packages/sage/symbolic/ expression.so in sage.symbolic.expression.Expression.__pow__ (sage/ symbolic/expression.cpp:11892)() /Applications/sage/local/lib/python2.6/site-packages/sage/rings/ rational.so in sage.rings.rational.Rational.__pow__ (sage/rings/ rational.c:15609)() /Applications/sage/local/lib/python2.6/site-packages/sage/structure/ element.so in sage.structure.element.RingElement.__mul__ (sage/ structure/element.c:11337)() /Applications/sage/local/lib/python2.6/site-packages/sage/structure/ coerce.so in sage.structure.coerce.CoercionModel_cache_maps.bin_op (sage/structure/coerce.c:6994)() TypeError: unsupported operand parent(s) for '*': 'Rational Field' and '<type 'NoneType'>' -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
