我有一个矩阵:
[
[ 5 10 15 20]
[ 6 12 18 24]
[ 7 14 21 28]
[ 8 16 24 32]
]
这是(4x4).
我想制作一个(4x4x4)矩阵,如下所示:
[
[
[ 5 0 0 0]
[ 6 0 0 0]
[ 7 0 0 0]
[ 8 0 0 0]]
[
[ 0 10 0 0]
[ 0 12 0 0]
[ 0 14 0 0]
[ 0 16 0 0]]
[
[ 0 0 15 0]
[ 0 0 18 0]
[ …