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  1. # calculating derivatives
  2.  
  3. def deriv(f):
  4.     dx = 0.0001
  5.     return lambda x : (f(x+dx) - f(x)) / dx
  6.  
  7. def cube(x):
  8.     return x*x*x
  9.  
  10. cube_deriv = deriv(cube)
  11.  
  12. print(cube_deriv(2))
  13. print(cube_deriv(3))
  14. print(cube_deriv(4))
Success #stdin #stdout 0.01s 118656KB
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Standard input is empty
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12.00060001
27.0009000101
48.0012000099
https://ideone.com/4FyiAx
language:
Python (PyPy 2.7.13)
created:
6 years ago
visibility:
public

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