红宝石 |数学 cbrt()函数

cbrt()是 Ruby 中的一个内置函数，返回给定值的立方根。

Syntax: Math.cbrt(value) 

Parameters: The function accepts one mandatory parameter value whose cuberoot is to be returned. 

Return Value: It returns the cuberoot of the value.

示例 1 ：

Ruby

#Ruby program for cbrt() function
 
#Assigning values
val1 = 8 val2 = 27 val3 = 64 val4 = 1000
 
#Prints the cbrt() value
                                    puts Math.cbrt(val1)
                                        puts Math.cbrt(val2)
                                            puts Math.cbrt(val3)
                                                puts Math.cbrt(val4)

输出：

2.0
3.0000000000000004
4.0
10.0

示例 2 ：

红宝石

#Ruby program for cbrt() function
 
#Assigning values
val1 = 10 val2 = -29 val3 = 899 val4 = -87879
 
#Prints the cbrt() value
                                        puts Math.cbrt(val1)
                                            puts Math.cbrt(val2)
                                                puts Math.cbrt(val3)
                                                    puts Math.cbrt(val4)

输出：

2.1544346900318834
-3.0723168256858475
9.651316634226061
-44.45920597627334

参考：https://devdocs.io/ruby~2.5/math#method-c-cbrt