1 files changed, 0 insertions, 52 deletions
diff --git a/Lib/lib-old/poly.py b/Lib/lib-old/poly.py
deleted file mode 100644
index fe6a1dc..0000000
--- a/Lib/lib-old/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 n:
-        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...