Hi, Is there a way of performing vectorized ?axpy (daxpy) operations without making copies or dropping into C?
i.e: I want to do big = (10000,5000) A = np.ones(big,dtype=float) B = np.ones(big,dtype=float) a = 1.5 B += a*A without making any copies? (I know I could go A *= a B += A A /= a but that is not so efficient either). There are exposed blas daxpy operations in scipy, but in the version I have (EPD), these also seem to make copies (though recent version seem to be fixed by looking at the source.) Thanks, Michael. _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion