Ruby Float round() method with example

round() is a float class method which return a float value rounded to the nearest value with n digits decimal digits precision.

Syntax: float.round() Parameter: float value as argument Return: Float value rounded to nearest precision If precision is -ve : integer with at least ndigits.abs trailing zeros If ndigits is +ve : a floating-point number, otherwise integer

Example #1 : Output :

rounding a : 1

rounding b : 2999

Example #2 : Output :

round a : 0.77

round b : 3000

round c : 2