diff options
Diffstat (limited to 'numeric.c')
| -rw-r--r-- | numeric.c | 11 |
1 files changed, 9 insertions, 2 deletions
@@ -2215,7 +2215,7 @@ rb_int_truncate(VALUE num, int ndigits) /* * call-seq: - * float.round([ndigits]) -> integer or float + * float.round([ndigits] [, half: symbol]) -> integer or float * * Rounds +float+ to a given precision in decimal digits (default 0 digits). * @@ -2242,13 +2242,20 @@ rb_int_truncate(VALUE num, int ndigits) * 34567.89.round(2) #=> 34567.89 * 34567.89.round(3) #=> 34567.89 * - * If <code>half:</code> optional keyword is given, just-half number + * If the <code>half:</code> optional keyword is given, just-half number * will be rounded according to that value. * Supported values for this keyword are follows. * * * <code>:up</code> or +nil+: the result will be rounded away from zero * * <code>:even</code>: the result will be rounded to nearest even number * * <code>:down</code>: the result will be rounded close to zero + * + * 2.5.round(half: :up) #=> 3 + * 2.5.round(half: :even) #=> 2 + * 2.5.round(half: :down) #=> 2 + * 3.5.round(half: :up) #=> 4 + * 3.5.round(half: :even) #=> 4 + * 3.5.round(half: :down) #=> 3 */ static VALUE |