18 lines
245 B
Python
18 lines
245 B
Python
import numpy as np
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import matplotlib.pyplot as plt
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r = 1.0
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R = np.linspace(0.001, 10, 500)
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eta = R / (R + r)
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plt.plot(R, eta)
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plt.xlabel("R")
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plt.ylabel("η(R)")
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plt.grid(True)
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plt.savefig("4.png", dpi=300, bbox_inches="tight")
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plt.show()
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