Henry Ford would have been most interested to bring assembly lines which is an modern innovation to his autmotive factories. Although Henry Ford didn't invent cars he developed assembly lines
Is it apprenticeship???:D
def dx(fn, x, delta=0.001):
return (fn(x+delta) - fn(x))/delta
def solve(fn, value, x=0.5, maxtries=1000, maxerr=0.00001):
for tries in xrange(maxtries):
err = fn(x) - value
if abs(err) < maxerr:
return x
slope = dx(fn, x)
x -= err/slope
raise ValueError('no solution found')
