07 2012 档案
摘要:1 #Copyright 2012 wuyuangui. 2 #contact : notmycupoftea@163.com 3 4 5 6 import os 7 8 path = 'F:\Python\open project\SGI\SGI_STL' 9 paths = path.replace('\\', '//')10 paths = paths + '//'11 print paths12 files = os.listdir(paths)13 for i in files:14 #print(i)15 pat =
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摘要:"""'17*x^2 - 16*|x|*y + 17*y^2 = 225'"""import numpy as npimport matplotlib.pyplot as pltX = np.arange(-5.0, 5.0, 0.1)Y = np.arange(-5.0, 5.0, 0.1)x, y = np.meshgrid(X, Y)f = 17 * x ** 2 - 16 * np.abs(x) * y + 17 * y ** 2 - 225fig = plt.figure()cs = plt.contour(
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