红宝石 |复杂的 arg() 方法

Complex#arg()是一个 Complex 类方法，它返回复数极坐标形式的角度部分。

Syntax: Complex.arg()

Parameter: Complex values

Return: angle part of the polar form of complex value.

示例 #1：

# Ruby code for Complex.arg() method
  
# declaring Complex value
a = Complex(200)
  
# declaring Complex value
b = Complex(-1, 4)
  
# declaring Complex value
c = Complex('i')
  
  
# use of arg()  
puts "Complex arg form : #{a.arg}\n\n"
  
puts "Complex arg form : #{b.arg}\n\n"
  
puts "Complex arg form : #{c.arg}\n\n"

输出 ：

Complex arg form : 0.0

Complex arg form : 1.8157749899217608

Complex arg form : 1.5707963267948966

示例 #2：

# Ruby code for Complex.arg() method
  
# declaring Complex value
a = Complex(20, 90)
  
# declaring Complex value
b = Complex('i')
  
# declaring Complex value
c = Complex(100, -500)
  
# use of arg()  
puts "Complex arg form : #{a.arg}\n\n"
  
puts "Complex arg form : #{b.arg}\n\n"
  
puts "Complex arg form : #{c.arg}\n\n"

输出 ：

Complex arg form : 1.3521273809209546

Complex arg form : 1.5707963267948966

Complex arg form : -1.373400766945016