aeneng schreef: > Hello everyone, > > I am just starting to use python in numerical cacluation. > I need you to help me to see what's wrong with the following piece of > codes, which computes the cross product of two vectors and returns > the result. u and v are two 3x1 matrix. > > when I import the function, error message show like this >>>> import cross > Traceback (most recent call last): > File "<stdin>", line 1, in ? > File "cross.py", line 8 > ppp2=u[2]*v[0]-u[0]*v[2] > ^ > SyntaxError: invalid syntax > > WHAT IS WRONG WITH MY CODE? > > I appreciate your help. > > ##here is the function definition. > ##cross.py## > def cross(u,v) > """input two vectors u and v in 3-D space, > output a cross product of vector w, in column or in row > accordingly.""" > ppp1,ppp2,ppp3=0.0,0.0,0.0
You forgot the : after def cross(u, v) -- The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom. -- Isaac Asimov Roel Schroeven -- http://mail.python.org/mailman/listinfo/python-list
