tswedish

import math

def sin(dual):
    return Dual(math.sin(dual.value), dual.derivative * math.cos(dual.value))

tswedish

def __add__(self, other):
         if isinstance(other, self.__class__):
            return Dual(self.value + other.value, self.derivative + other.derivative)
        else:
            return self + Dual(other)

tswedish

class Dual:
    def __init__(self, value=0., derivative=0.):
        self.value = value
        self.derivative = derivative

    def __add__(self, other):
        return Dual(self.value + other.value, self.derivative + other.derivative)

    def __mul__(self, other):
        return Dual(self.value * other.value, self.value*other.derivative + self.derivative * other.value)

tswedish

def super_complicated_function(x):
	return x * sin(x+6.)**2. / 2. - 2. / 2.**x

tswedish

Keybase proof

I hereby claim:

• I am tswedish on github.
• I am tswedish (https://keybase.io/tswedish) on keybase.
• I have a public key ASBmF9szOq6XhfbyhBf4NY1dTFdefEIf91vI5vstfqE7Ugo

To claim this, I am signing this object: