[PYTHON MATRIX-SIG] Time for recap?
Hinsen Konrad
hinsenk@ere.umontreal.ca
Mon, 2 Oct 1995 13:08:11 -0400
I just meant to end the debate about whether a*b should mean matrix
multiplication in the LA sense or elementwise multiplication like
APL/J. This only an issue for * and /. For / most people agree that
...
OK, on that I agree, of course. I thought you were referring to
functions like matrix inversion.
I don't see much of a problem with that. Functions/methods that take
an array and return a like-shaped array should always copy their
argument before modifying it. Methods that are supposed to modify an
array in place should not also return a reference to the array.
That seems a good way to make the distinction clear.
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Konrad Hinsen | E-Mail: hinsenk@ere.umontreal.ca
Departement de chimie | Tel.: +1-514-343-6111 ext. 3953
Universite de Montreal | Fax: +1-514-343-7586
C.P. 6128, succ. A | Deutsch/Esperanto/English/Nederlands/
Montreal (QC) H3C 3J7 | Francais (phase experimentale)
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