Module: Math

Included in:
Noyes, Noyes::DCT, Noyes::HammingWindow, Noyes::MelFilter, Noyes::Preemphasizer, NoyesJava::Preemphasizer
Defined in:
lib/common/ruby_ext.rb,
lib/common/ruby_ext.rb,
lib/common/noyes_math.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.log2(n) ⇒ Object 



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# File 'lib/common/ruby_ext.rb', line 24

def Math.log2 n
  log(n)/log(2)
end

.max(a, b) ⇒ Object 



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# File 'lib/common/ruby_ext.rb', line 2

def self.max a, b
  a > b ? a : b
end

.min(a, b) ⇒ Object 



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# File 'lib/common/ruby_ext.rb', line 5

def self.min a, b
  a < b ? a : b
end

Instance Method Details

#dot_product(l1, l2) ⇒ Object 



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# File 'lib/common/noyes_math.rb', line 2

def dot_product l1, l2
  sum = 0
  for i in 0...l1.size
    sum += l1[i] * l2[i]
  end
  sum
end