Declaring zmod and poly obsolete. They have problems.

1 files changed, 0 insertions, 52 deletions

diff --git a/Lib/poly.py b/Lib/poly.py
deleted file mode 100644
index 57bd2032d4..0000000000
--- a/Lib/poly.py
+++ /dev/null
@@ -1,52 +0,0 @@
-# module 'poly' -- Polynomials
-
-# A polynomial is represented by a list of coefficients, e.g.,
-# [1, 10, 5] represents 1*x**0 + 10*x**1 + 5*x**2 (or 1 + 10x + 5x**2).
-# There is no way to suppress internal zeros; trailing zeros are
-# taken out by normalize().
-
-def normalize(p): # Strip unnecessary zero coefficients
-	n = len(p)
-	while p:
-		if p[n-1]: return p[:n]
-		n = n-1
-	return []
-
-def plus(a, b):
-	if len(a) < len(b): a, b = b, a # make sure a is the longest
-	res = a[:] # make a copy
-	for i in range(len(b)):
-		res[i] = res[i] + b[i]
-	return normalize(res)
-
-def minus(a, b):
-	neg_b = map(lambda x: -x, b[:])
-	return plus(a, neg_b)
-
-def one(power, coeff): # Representation of coeff * x**power
-	res = []
-	for i in range(power): res.append(0)
-	return res + [coeff]
-
-def times(a, b):
-	res = []
-	for i in range(len(a)):
-		for j in range(len(b)):
-			res = plus(res, one(i+j, a[i]*b[j]))
-	return res
-
-def power(a, n): # Raise polynomial a to the positive integral power n
-	if n == 0: return [1]
-	if n == 1: return a
-	if n/2*2 == n:
-		b = power(a, n/2)
-		return times(b, b)
-	return times(power(a, n-1), a)
-
-def der(a): # First derivative
-	res = a[1:]
-	for i in range(len(res)):
-		res[i] = res[i] * (i+1)
-	return res
-
-# Computing a primitive function would require rational arithmetic...