Re: [Numpy-discussion] Sum of the product of three or more arrays

On 10/18/07, Robert Kern [EMAIL PROTECTED] wrote: Geoffrey Zhu wrote: Hi All, Given three vectors of the same lengths, X, Y, and Z, I am looking for an efficient way to calculate the following: sum(x[i]*y[i]*z[i], for i=1..n ) (x*y*z).sum() -- Robert Kern I have come to believe

Re: [Numpy-discussion] Sum of the product of three or more arrays

Geoffrey Zhu wrote: Hi All, Given three vectors of the same lengths, X, Y, and Z, I am looking for an efficient way to calculate the following: sum(x[i]*y[i]*z[i], for i=1..n ) (x*y*z).sum() -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma

Re: [Numpy-discussion] Sum of the product of three or more arrays

I think I figured out: sum(X*Y*Z). Never mind. On 10/18/07, Geoffrey Zhu [EMAIL PROTECTED] wrote: Hi All, Given three vectors of the same lengths, X, Y, and Z, I am looking for an efficient way to calculate the following: sum(x[i]*y[i]*z[i], for i=1..n ) I am not sure if there is a

[Numpy-discussion] Sum of the product of three or more arrays

Hi All, Given three vectors of the same lengths, X, Y, and Z, I am looking for an efficient way to calculate the following: sum(x[i]*y[i]*z[i], for i=1..n ) I am not sure if there is a vectorized way to do this. Thanks, Geoffrey ___ Numpy-discussion