Tree questions in one : 1) If I follow the quickref guide the following code
AA=matrix([[3,-2,2],[1,-4,4],[1,-1,1]]
AA.rescale_row(0,-1)
should return
matrix([[-3,2,-2],[1,-4,4],[1,-1,1]]
but I see no change. What gos wrong ?
2) Is ther a way to decuplate a line and rescale it without retransforming the matrix in list?
The rescale_row method acts in place, which means that it does not return anything, but modifies the matrix:
sage: AA=matrix([[3,-2,2],[1,-4,4],[1,-1,1]])
sage: AA
[ 3 -2 2]
[ 1 -4 4]
[ 1 -1 1]
sage: AA.rescale_row(0,-1)
sage: AA
[-3 2 -2]
[ 1 -4 4]
[ 1 -1 1]
Asked: 2022-03-28 16:52:39 +0100
Seen: 166 times
Last updated: Mar 28 '22
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