Python horner示例

示例#1

	def test_horner(self):
		a = self.coefficients
		b = [ (i+1)*a[i+1] for i in range(len(a)-1) ]
		c = [ (i+1)*b[i+1] for i in range(len(b)-1) ]
		x = random.random()
		ref0 = simplest_horner(a,x)
		ref1 = simplest_horner(b,x)
		ref2 = simplest_horner(c,x)
		self.assertEqual( ref0, polyuv.horner(a,x) )
		self.assertEqual( ref0, polyuv.horner01(a,x)[0] )
		self.assertEqual( ref0, polyuv.horner012(a,x)[0] )
		self.assertEqual( ref1, polyuv.horner01(a,x)[1] )
		self.assertEqual( ref1, polyuv.hornerd(a,x,1) )
		self.assertEqual( ref1, polyuv.horner012(a,x)[1] )
		self.assertEqual( ref2, polyuv.horner012(a,x)[2] )
		self.assertEqual( ref2, polyuv.hornerd(a,x,2) )

示例#2

	def test_horner(self):
		x = random.random()
		self.assertEqual( simplest_horner(self.coefs, x), polyuv.horner(self.coefs, x) )