Posted By

octech on 07/24/08

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/ Published in: Ruby

英語のタイトルが適当な英訳なので、誰かOK/NGを教えてください。

# 任意の底 a を持つ x の対数を計算.
def logA( x, a )
  return (Math.log(x)/Math.log(a))
end
 
p logA( 2, 2 ) # => 1.0
p logA( 4, 2 ) # => 2.0

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