python numpy——矩陣基本運算

  論numpy中matrix 和 array的區別   https://blog.csdn.net/vincentlipan/article/details/20717163python 1.示例_1#example_1: a = np.array([[1,2],[2,3],[3,4]]) b = np.array([[3,4],[4,5]]) print('a=\n',a) print('b=

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