Mega Code Archive

 

Categories / Ruby / Development

 

Taking Logarithms

puts Math.log(1)                                    # => 0.0 puts Math.log(Math::E)                              # => 1.0 puts Math.log(10)                                   # => 2.30258509299405 puts Math::E ** Math.log(25)                        # => 25.0 puts Math.log10(1)                                  # => 0.0 puts Math.log10(10)                                 # => 1.0 puts Math.log10(10.1)                               # => 1.00432137378264 puts Math.log10(1000)                               # => 3.0 puts 10 ** Math.log10(25)                           # => 25.0