This is really funny! sage: ((-1)**(1/2))**(0.5) None
sage: ((-1)**(0.5))**(0.5) 0.707106781186548 + 0.707106781186547*I sage: type(((-1)**(0.5))) <type 'sage.rings.complex_number.ComplexNumber'> sage: type((-1)**(1/2)) <type 'sage.rings.number_field.number_field_element_quadratic.NumberFieldElement_quadratic'> sage: type(I) <type 'sage.symbolic.expression.Expression'> sage: type(I**(1/2)) <type 'sage.symbolic.expression.Expression'> sage: I**(1/2) sqrt(I) On Wednesday, February 15, 2012 1:58:24 PM UTC+8, William wrote: > > Hi, > > A student in my class (Andrey Sarantsev) just pointed out to me that > in Sage-4.8 and Sage-5.0, we have > > sage: I^(0.5) > None > > What? That's not good. > > I'm not just putting this on trac, because I don't even know how to > search for whether this is there already. This seems like it should > be a blocker bug. > > -- William > -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
