関連ワード:  what is a 2d vector in python    what is a 2d array in python    what is a 2d matrix in python    what is the length of a 2d array in python    what is 1d and 2d array in python    what is a 2d vector    2d vector example    define a 2d vector in c++  
結果 : what is a 2d vector in python