Hi, i´ve got the following problem on my sage installation. The folloing code from http://www.math.washington.edu/~jkantor/Numerical_Sage/node11.html Didn´t work for me:
import numpy j=numpy.complex(0,1) num_points=50 u=numpy.zeros((num_points,num_points),dtype=float) pi_c=float(pi) x=numpy.r_[0.0:pi_c:num_points*j] u[0,:]=numpy.sin(x) --------------------------------------------------------------------------- <type 'exceptions.AttributeError'> Traceback (most recent call last) /home/volker/<ipython console> in <module>() <type 'exceptions.AttributeError'>: 'float' object has no attribute 'sin' I can use this (its the same, because sin(x[-1])=0) u[0, :-1]=numpy.sin(x[ :-1]) And using real instead of float, and everything works as aspected pi_c = real(pi) x=numpy.r_[0.0:pi_c:num_points*j] u[0,:]=numpy.sin(x) Is this a bug in sage? On my normal python + numpy session the first code runs just find. volker --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://sage.math.washington.edu/sage/ and http://sage.scipy.org/sage/ -~----------~----~----~----~------~----~------~--~---
