関連ワード:  numpy make multidimensional array    numpy make 2d array    numpy make 2d array from 1d    numpy make 2d array into 1d    numpy define multidimensional array    numpy create multidimensional array from list    numpy make 2d array of zeros    numpy make 2d array 3d    numpy make 2d array from two 1d    numpy define 2d array