Steven D'Aprano wrote: > On Mon, 17 Oct 2005 22:23:43 -0700, David Pokorny wrote: > >>Hi, >> >>Just wondering if anyone has considered macros for Python. I have one >>good use case. In "R", the statistical programming language, you can >>multiply matrices with A %*% B (A*B corresponds to pointwise >>multiplication). In Python, I have to type >> >>import Numeric >>matrixmultiply(A,B) >> >>which makes my code almost unreadable. > > Yes, I see what you mean, it is pretty confusing. It almost looks like > a function that multiplies two matrices and returns the result. > > Have you tried coming up with better names for your arguments than A and > B? Many people find that using self-documenting variable names helps make > code easier to understand.
Well, to be fair, his example was trivial. When you have more complicated matrix expressions with transposes and conjugations and more matrixmultiplies than you can shake a stick at, it gets ugly pretty fast. F = dot(dot(Z, F),transpose(conjugate(Z))) versus from scipy import * F = mat(F) Z = mat(Z) F = Z*F*Z.H -- Robert Kern [EMAIL PROTECTED] "In the fields of hell where the grass grows high Are the graves of dreams allowed to die." -- Richard Harter -- http://mail.python.org/mailman/listinfo/python-list
