Refact(Core): Move arithmetic to core from compute

mapytex/calculus/core/compute/add.py

@@ -16,7 +16,7 @@ from ..MO import MO, MOnumber, MOstr
 from ..MO.fraction import MOFraction
 from ..MO.monomial import MOstrPower, MOMonomial
 from ..MO.polynomial import MOpolynomial
-from .arithmetic import lcm
+from ..arithmetic import lcm
 from .filters import special_case
 
 add_doc = """ Adding MOs

mapytex/calculus/core/compute/arithmetic.py

@@ -1,82 +0,0 @@
-#!/usr/bin/env python
-# encoding: utf-8
-
-
-__all__ = ['gcd']
-
-
-def gcd(a, b):
-    """Compute gcd(a,b)
-
-    :param a: first number (need to support abs, comparison, * and %)
-    :param b: second number (need to support abs, comparison, * and %)
-    :returns: the gcd
-
-    >>> gcd(3, 15)
-    3
-    >>> gcd(15, 3)
-    3
-    >>> gcd(-3, -15)
-    -3
-    >>> gcd(5, 12)
-    1
-    >>> gcd(4, 14)
-    2
-
-    """
-    try:
-        pos_a, _a = (a >= 0), abs(a)
-        pos_b, _b = (b >= 0), abs(b)
-
-        gcd_sgn = (-1 + 2 * (pos_a or pos_b))
-    except TypeError:
-        _a = a
-        _b = b
-        gcd_sgn = 1
-
-    if _a > _b:
-        c = _a % _b
-    else:
-        c = _b % _a
-
-    if c == 0:
-        return gcd_sgn * min(_a, _b)
-    elif _a == 1:
-        return gcd_sgn * _b
-    elif _b == 1:
-        return gcd_sgn * _a
-    else:
-        return gcd_sgn * gcd(min(_a, _b), c)
-
-def lcm(a, b):
-    """Compute lcm(a,b)
-
-    :param a: first number (need to support abs, comparison, *, % and //)
-    :param b: second number (need to support abs, comparison, *, % and //)
-    :returns: the lcm
-
-    >>> lcm(3, 15)
-    15
-    >>> lcm(15, 3)
-    15
-    >>> lcm(-3, -15)
-    -15
-    >>> lcm(5, 12)
-    60
-    >>> lcm(4, 14)
-    28
-
-    """
-    return (a * b) // gcd(a, b)
-
-if __name__ == '__main__':
-    print(gcd(3, 15))
-    print(gcd(3, 15))
-    print(gcd(-15, -3))
-    print(gcd(-3, -12))
-
-
-# -----------------------------
-# Reglages pour 'vim'
-# vim:set autoindent expandtab tabstop=4 shiftwidth=4:
-# cursor: 16 del