Oct. 31, 2007
4:55 p.m.
On Oct 30, 2007 11:40 PM, Alan G Isaac <aisaac@american.edu> wrote:
1.0**numpy.array([1,2,3]) array([ 1., 1., 1.]) 1.0**numpy.mat([1,2,3]) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: unsupported operand type(s) for ** or pow(): 'float' and 'matrix'
Why the restriction for matrices?
Same question for matrices conformable for broadcasting: why not produce the equivalent of the array result?
With the caveat that I don't use the matrix class: I believe it's because M**n results in the matrix power of n. It would be confusing if n**M did a broadcast element wise power. -- . __ . |-\ . . tim.hochberg@ieee.org