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今天听说千里马可以在 Sage 中通过 contour_plot 来绘制国家图。我尝试以下方法未能成功导入 Maxima:
from Maxima import contour_plot
我想制作一张和这里类似的地图。
您可能是指等高线图。快速入门并将此代码粘贴到您的 Sage Notobook:
f = λ x,y: cos(x*y)
轮廓图(f, (-100, 4), (-4, 4))
更多示例: