def log(A, B):
"""
A ⍟ B
"""
try:
if A == 10:
return math.log10(B)
# Python 3.3 and later # if A == 2: return math.log2(B)
return math.log(B, A)
except ValueError:
if fuzzyEquals(A, B):
return 1.0
if fuzzyEquals(A, 0):
return 0.0
if fuzzyEquals(B, 1):
return 0.0
except ZeroDivisionError:
if fuzzyEquals(A, B):
return 1.0
assertError("DOMAIN ERROR")
def divide(A, B):
"""
A ÷ B
"""
try:
return operator.truediv(A, B)
except ZeroDivisionError:
if fuzzyEquals(A, 0) and fuzzyEquals(B, 0):
return 1
assertError("DOMAIN ERROR")
def gt(A, B):
"""
A > B
"""
if isinstance(A, int) and isinstance(B, int):
return int(operator.gt(A, B))
if fuzzyEquals(A, B):
return 0
return int(operator.gt(A, B))
def ge(A, B):
"""
A ≥ B
"""
if isinstance(A, int) and isinstance(B, int):
return int(operator.ge(A, B))
if fuzzyEquals(A, B):
return 1
return int(operator.ge(A, B))
def ne(A, B):
"""
A ≠ B
"""
if isinstance(A, int) and isinstance(B, int):
return int(operator.ne(A, B))
if isinstance(A, str) and isinstance(B, str):
return int(operator.ne(ord(A), ord(B)))
try:
return int(not fuzzyEquals(A, B))
except TypeError:
return 1
def eq(A, B):
"""
A = B
"""
if isinstance(A, int) and isinstance(B, int):
return int(operator.eq(A, B))
if isinstance(A, str) and isinstance(B, str):
return int(operator.eq(ord(A), ord(B)))
try:
return int(fuzzyEquals(A, B))
except TypeError:
return 0
def residue(A, B):
"""
A | B
"""
if isinstance(A, int):
if A == 0:
return B
else:
if fuzzyEquals(A, 0):
return B
if isinstance(fuzzyInteger(operator.truediv(B, A)), int):
return 0
R = math.fmod(B, A)
if (R < 0) != (A < 0):
R += A
if isinstance(A, int) and isinstance(B, int):
R = int(R)
return R