from numpy import * a = sqrt(maximum(0, a**2-repeat(b*c, columns).reshape(columns, rows)))
Nadav.
-----הודעה מקורית-----
מאת: [EMAIL PROTECTED] בשם Gong, Shawn (Contractor)
נשלח: ג 12-אוגוסט-08 17:37
אל: Discussion of Numerical Python
נושא: [Numpy-discussion] non-linear array manipulation
hi list,
The following array manipulation takes long time because I can't find
ways to do in row/column, and have to do cell by cell. Would you check
to see if there is a nicer/faster way for this non-linear operation?
for i in range(rows):
for j in range(columns):
a[i][j] = math.sqrt( max(0.0, a[i][j]*a[i][j] - b[j]*c[j]) )
thanks,
Shawn
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