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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