--- !ruby/object:RDoc::RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:RDoc::Markup::Flow::P 
  :body: Computes the arc cosine of <em>x</em>. Returns 0..PI.
full_name: Math::acos
is_singleton: true
name: acos
params: |
  Math.acos(x)    => float

visibility: public
