Alan,
Did you drop a line when you cut and pasted the rotor.py code?
v/r
Scott
On sidux sympy 6.4 and 6.5 and Centos5.4 (sage 4.2 with sympy 6.4) i
get the following errors:
general output for sidux linux sympy 6.4:
rotor.py
sidux-irc.desktop
sidux-manual.desktop
s...@sidkde:~/Desktop$ python rotor.py
Traceback (most recent call last):
File "rotor.py", line 12, in <module>
MV.setup('e',metric='[1,1,1]',coords=[x,y,z])
File "/usr/lib/pymodules/python2.5/sympy/galgebra/GA.py", line 833,
in setup
MV.define_metric(metric)
File "/usr/lib/pymodules/python2.5/sympy/galgebra/GA.py", line 536,
in define_metric
gij = metric[i][j]
IndexError: list index out of range
s...@sidkde:~/Desktop$
Below is the code i copied out of my rotor.py file:
#!/usr/bin/python
import sys
import os,sympy,time
from sympy.galgebra.GA import *
from sympy import cos,sin
set_main(sys.modules[__name__])
if __name__ == '__main__':
make_symbols('a x y z')
MV.setup('e',metric='[1,1,1]',coords=[x,y,z])
MV.set_str_format(1)
u = MV('u','vector')
x = MV('x','vector')
print u
print x
print MV.I*u
R = cos(a)-MV.I*u*sin(a/2)
Rrev = R.rev()
print R
print Rrev
MV.set_str_format(2)
rot_x = R*x*Rrev
rot_x.simplify()
print rot_x
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