Ruby | Numeric real? function Last Updated : 12 Jul, 2025 Summarize Comments Improve Suggest changes Share Like Article Like Report The real?() is an inbuilt method in Ruby returns a boolean value. It returns true if the number is a negative one, else it returns false. Syntax: num.real?() Parameters: The function needs a number which is to be checked for. Return Value: It returns returns a boolean value. Example 1: CPP # Ruby program for real?() # method in Numeric # Initialize a number num1 = 10 # Prints real or not puts num1.real?() Output: true Example 2: CPP # Ruby program for real?() # method in Numeric # Initialize a number num1 = Complex(12, 3) # Prints real or not puts num1.real?() Output: false Comment More infoAdvertise with us Next Article Ruby | Numeric real() function G gopaldave Follow Improve Article Tags : Ruby Ruby-Methods Ruby Numeric-class Similar Reads Ruby | Numeric real() function The real() is an inbuilt method in Ruby returns the real part of the given number. Syntax: num.real() Parameters: The function needs the number whose real part is to be returned. Return Value: It returns the real part of the complex number. Example 1: Ruby # Ruby program for real() # method in Numer 1 min read Ruby | Numeric rect() function The rect() is an inbuilt method in Ruby returns an array which consists of a real and an imaginary number. Syntax: num.rect() Parameters: The function needs the number whose real and imaginary part is returned. Return Value: It returns an array which consists of a real and an imaginary number. Examp 1 min read Ruby | Numeric rectangular() function The rectangular() is an inbuilt method in Ruby returns an array which consists of a real and an imaginary number. Syntax: num.rectangular() Parameters: The function needs the number whose real and imaginary part is returned. Return Value: It returns an array which consists of a real and an imaginary 1 min read Ruby | Numeric remainder() function The remainder() is an inbuilt method in Ruby returns the remainder when num1 is divided by num2. Syntax: num1.remainder(num2) Parameters: The function needs num1 and num2 which are to be divided. Return Value: It returns the remainder. Example 1: Ruby # Ruby program for remainder() # method in Numer 1 min read Ruby | Numeric phase() function The phase() is an inbuilt method in Ruby returns 0 if the value is positive, else it returns a float value pi. Syntax: num.phase() Parameters: The function needs a number which is to be checked. Return Value: It returns zero if the value is positive, else it returns a float value pi. Example 1: Ruby 1 min read Ruby | Numeric round() function The round() is an inbuilt method in Ruby returns a number rounded to a number nearest to the given number with a precision of the given number of digits after the decimal point. In case the number of digits is not given, the default value is taken to be zero. Syntax: num.round(ndigits) Parameters: T 1 min read Like