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-rw-r--r-- | ChangeLog | 5 | ||||
-rw-r--r-- | math.c | 4 |
2 files changed, 7 insertions, 2 deletions
@@ -1,3 +1,8 @@ +Mon Jan 12 13:53:17 2015 SHIBATA Hiroshi <shibata.hiroshi@gmail.com> + + * math.c (math_atan2): improve documentation. + [Feature #10323][ruby-core:65400][ci skip] + Mon Jan 12 13:50:49 2015 SHIBATA Hiroshi <shibata.hiroshi@gmail.com> * ext/bigdecimal/bigdecimal.c: fixes documentation like labeled lists, @@ -37,8 +37,8 @@ VALUE rb_eMathDomainError; * call-seq: * Math.atan2(y, x) -> Float * - * Computes the arc tangent given +y+ and +x+. - * Returns a Float in the range -PI..PI. + * Returns a angle in radians between the positive x-axis of cartesian plane + * and the point given by the coordinates (+x+, +y+) on it. * * Domain: (-INFINITY, INFINITY) * |