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')
Answer:
Because of the newly developed biometric technology, the FBI was able to
quickly identify two suspects.
The blurry photos released by the FBI after the bombing prompted
researchers to improve their early biometric software.
Because biometric technology was unavailable at the time, the Boston
Marathon bomber remains at large.
The Boston Marathon bombing made researchers aware of how biometric
technology is sometimes useless and ineffective.
Explanation:
Answer:
Functions of an operating system. An operating system provides three essential capabilities: It offers a UI through a CLI or GUI; it launches and manages the application execution; and it identifies and exposes system hardware resources to those applications -- typically, through a standardized API.
Explanation: