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Kernel.#Rational(x, y = 1, exception: true) -> Rational | nil (55180.0)

• 3.0

• モジュール関数

引数を有理数(Rational)に変換した結果を返します。

...0.3E0') # => (3/10)
Rational('0.1E1/3') # => (1/3)
Rational('1.2/3') # => (2/5)
Rational('1/3.1') # => ArgumentError
Rational('3.0', '3.0') # => (1/1)
Rational('3/3', '3/3') # => (1/1)
Rational('1_234_567') # => (1234567/1)
Rational(" \n10\t ") # => (10/1) # 空白類は無視...

• ArgumentError
• Kernel
• Rational