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Update plotting derivative and estimate #57

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Update plotting derivative and estimate #57

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4 changes: 2 additions & 2 deletions code-python3/gradient_descent.py
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Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,8 @@ def derivative(x):
# plot to show they're basically the same
import matplotlib.pyplot as plt
x = range(-10,10)
plt.plot(x, map(derivative, x), 'rx') # red x
plt.plot(x, map(derivative_estimate, x), 'b+') # blue +
plt.plot(x, list(map(derivative, x)), 'rx') # red x
plt.plot(x, list(map(derivative_estimate, x)), 'b+') # blue +
plt.show() # purple *, hopefully

def partial_difference_quotient(f, v, i, h):
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