np.sqrt(x**2 + y**2)
时间: 2023-09-10 12:08:55 浏览: 50
np.sqrt(x**2 + y**2)是计算x和y的平方和的平方根。它可以用来计算二维平面上每个点的距离原点的距离。这段代码中,X和Y是通过np.mgrid函数生成的二维数组,表示了一个平面上的网格点,np.sqrt(X**2 + Y**2)就是计算了每个网格点与原点(0,0)之间的距离。<span class="em">1</span><span class="em">2</span>
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