tswedish

def __add__(self, other):
        if isinstance(other, self.__class__):
            return Variable(lambda a,b : a+b, (self, other))
        else:
            return Variable(lambda a,b : a+b, (self, Variable(other)))

tswedish

for x in [-1., 0.5, 3.]:
    print('Function Input: {}'.format(x))
    print('Function Value: {}'.format(super_complicated_function(x)))
    print('Function Symbolic Derivative: {}'.format(d_super_complicated_function(x)))
    x_v = Variable(x)
    L = super_complicated_function(x_v)
    print('Variable Function Output Value: {}'.format(L))
    L.backward()
    print('Input value: {}'.format(x_v))
    print('-'*32)

tswedish

def fn(x):
    return x**2 + 0.2*(x-2)**5 + 2*x**3

# initialization
x = Variable(3.)
target = 42.
print('---- Initial Value ----')
print('fn(x): {}'.format(fn(x)))
print('Target: {}'.format(target))
print('intial guess for x: {}'.format(x))

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: