红宝石 |数学 tan()函数

tan()是 Ruby 中的一个内置函数，它返回以弧度表示的给定角度的正切，该角度在[-inf, +inf]范围内。返回值在[-inf, +inf] 范围内。

Syntax: Math.tan(value)

Parameters: The function accepts one mandatory parameter value whose corresponding tangent value is returned.

Return Value: It returns the tangent value.

示例 1 ：

#Ruby program for tan() function
  
#Assigning values
val1 = 1 val2 = 0 val3 = 989 val4 = -8932
  
#Prints the tan() value
                                     puts Math.tan(val1)
                                         puts Math.tan(val2)
                                             puts Math.tan(val3)
                                                 puts Math.tan(val4)

输出：

1.5574077246549023
0.0
-0.6866146142998235
-0.48563022371184766

示例 2 ：

#Ruby program for tan() function
  
#Assigning values
val1 = -1023 val2 = 0.67 val3 = 98 val4 = -39
  
#Prints the tan() value
                                           puts Math.tan(val1)
                                               puts Math.tan(val2)
                                                   puts Math.tan(val3)
                                                       puts Math.tan(val4)

输出：

2.290822861412639
0.7922541747282569
0.6998536538095259
-3.614554407101535

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