update gcd/lcm/gcdx docs

pwl · Nov 14, 2013 · 07917e7 · 07917e7
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diff --git a/doc/helpdb.jl b/doc/helpdb.jl
@@ -3885,19 +3885,19 @@ popdisplay(d::Display)
 
 ("Mathematical Functions","Base","gcd","gcd(x, y)
 
- Greatest common divisor
+ Greatest common (positive) divisor
 
 "),
 
 ("Mathematical Functions","Base","lcm","lcm(x, y)
 
- Least common multiple
+ Least common (positive) multiple
 
 "),
 
 ("Mathematical Functions","Base","gcdx","gcdx(x, y)
 
- Greatest common divisor, also returning integer coefficients \"u\"
+ Greatest common (positive) divisor, also returning integer coefficients \"u\"
  and \"v\" that solve \"ux+vy == gcd(x,y)\"
 
 "),

diff --git a/doc/stdlib/base.rst b/doc/stdlib/base.rst
@@ -2632,15 +2632,15 @@ Mathematical Functions
 
 .. function:: gcd(x,y)
 
- Greatest common divisor
+ Greatest common (positive) divisor.
 
 .. function:: lcm(x,y)
 
- Least common multiple
+ Least common (positive) multiple.
 
 .. function:: gcdx(x,y)
 
- Greatest common divisor, also returning integer coefficients ``u`` and ``v`` that solve ``ux+vy == gcd(x,y)``
+ Greatest common (positive) divisor, also returning integer coefficients ``u`` and ``v`` that solve ``ux+vy == gcd(x,y)``
 
 .. function:: ispow2(n)