--- !ruby/object:RI::MethodDescription 
aliases: 
- !ruby/object:RI::AliasName 
  name: acos!
block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Computes the arc cosine of <em>x</em>. Returns 0..PI.
full_name: Math#acos
is_singleton: false
name: acos
params: |
  Math.acos(x)    => float

visibility: public
