红宝石 |复合+函数

Complex#+@() : +@()是一个 Complex 类方法，它返回一个复数的正值，即 a = +(a)

Syntax: Complex.+()

Parameter: Complex values

Return: positive value for a complex value.

示例 #1：

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

输出 ：

Complex + form : -200+800i

Complex + form : -4-1i

Complex + form : 0+200i

示例 #2：

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

输出 ：

Complex + form : 20+90i

Complex + form : 0+1i

Complex + form : 100-500i