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)

• + (Object) log2(n)
• + (Object) max(a, b)
• + (Object) min(a, b)

Instance Method Summary (collapse)

• - (Object) dot_product(l1, l2)

24
25
26

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

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

2
3
4

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

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

5
6
7

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

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

2
3
4
5
6
7
8

# 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