标签:finance

生成两个证券组合的机会集-泰恩数据

生成两个证券组合的机会集

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w = np.linspace(0,100,100) r = 0.3 x = (0.2**2*(w/100)**2+0.3**2*(1-w/100)**2+2*(w/100)*(1-w/100)*r*0.2*0.3)**(1/2) y = ...