Method: Float#round_at

Defined in:

lib/core/facets/numeric/round.rb

#round_at(d) ⇒ Object

Rounds to the given decimal position.

4.555.round_at(0)  #=> 5.0
4.555.round_at(1)  #=> 4.6
4.555.round_at(2)  #=> 4.56
4.555.round_at(3)  #=> 4.555

CREDIT: Trans

# File 'lib/core/facets/numeric/round.rb', line 50

def round_at( d ) #d=0
  (self * (10.0 ** d)).round.to_f / (10.0 ** d)
end