[Numpy-discussion] Any idea to run the dot-product on many arrays
Thomas.EMMEL at 3ds.com
Thu Jan 13 11:04:33 EST 2011
I need to rotate many vectors (x,y,z) with a given rotation matrix (3x3).
I can always do
for v in vectors:
tv += np.dot(mat, v)
where mat is my fixed matrix (or array of arrays) and v is a single array.
Is there any efficient way to use an array of vectors to do the transfomation
for all of these vectors at once?
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