红宝石 | BigDecimal – 值
BigDecimal#-() : -()是一个 BigDecimal 类方法,它返回两个 BigDecimal 数字的差。
Syntax: BigDecimal.-()
Parameter: BigDecimal values
Return: Difference of the two BigDecimal values
代码 #1:-() 方法的示例
# Ruby code for BigDecimal.-() method
# loading BigDecimal
require 'bigdecimal'
# declaring BigDecimal
a = 42.1**13
# declaring BigDecimal
b = -BigDecimal("10")
# declaring BigDecimal
c = -(22 - 7.1) ** 10
# SUBTRACTION RESULTS
puts "BigDecimal a - b : #{a-b}\n\n"
puts "BigDecimal b - c : #{b-c}\n\n"
puts "BigDecimal a - c : #{c-a}\n\n"
输出 :
BigDecimal a - b : 0.130517049020064400001E22
BigDecimal b - c : 0.539340066196341E12
BigDecimal a - c : -1.305170490739984e+21
代码 #2:-() 方法的示例
# Ruby code for BigDecimal.-() method
# Loading BigDecimal
require 'bigdecimal'
# declaring BigDecimal
a = 12**12 - 27
# declaring BigDecimal
b = BigDecimal('10')-(22 - 7.1) ** 10
# declaring BigDecimal
c = BigDecimal('-3')
# SUBTRACTION RESULTS
puts "BigDecimal a - b : #{a-b}\n\n"
puts "BigDecimal b - c : #{b-c}\n\n"
puts "BigDecimal a - c : #{c-a}\n\n"
输出 :
BigDecimal a - b : 0.9455440514425341E13
BigDecimal b - c : -0.539340066193341E12
BigDecimal a - c : -0.8916100448232E13