関連ワード:  2d and 3d array in numpy    create 1d 2d and 3d array in numpy    explain 1d 2d and 3d array in numpy    difference between 2d and 3d array in numpy    1d 2d 3d array in numpy    2d or 3d which is better    difference between 2d and 3d array    2d and 3d difference    2d vs 3d array    2d and 3d shape difference