红宝石 |向量 round()函数

round()是 Ruby 中的一个内置方法，它返回一个新向量，其中的条目四舍五入到给定的精度

Syntax: vec1.round()

Parameters: The function accepts a single parameter

Return Value: It returns a new vector with entries rounded to the given precision

示例 1 ：

# Ruby program for round() method in Vector
     
# Include matrix 
require "matrix"
     
# Initialize the vector
vec1 = Vector[1.145332, 2.932423, 3.1332445]
    
# Prints vector rounded to given precision
puts vec1.round(3)

输出：

Vector[1.145, 2.932, 3.133]

示例 2 ：

# Ruby program for round() method in Vector
     
# Include matrix 
require "matrix"
     
# Initialize the vector
vec1 = Vector[1.145332, 2.932423, 3.1332445]
    
# Prints vector rounded to given precision
puts vec1.round(0)

输出：

Vector[1, 3, 3]