红宝石 | BigDecimal sin()函数
BigDecimal#sin() : sin()是一个 BigDecimal 类方法,它将十进制的正弦返回到指定的精度位数,数字。
Syntax: BigDecimal.sin()
Parameter: BigDecimal values
Return: the sine of decimal to the specified number of digits of precision, numeric.
示例 #1:
# Ruby code for BigDecimal.sin() method
# loading library
require 'bigdecimal'
# declaring bigdecimal
a = BigDecimal("10")
# declaring bigdecimal
b = BigDecimal("1000") *2
# declaring bigdecimal
c = BigDecimal("11.43")
# sin() method
puts "BigDecimal a sin method : #{Math.sin(a)}\n\n"
puts "BigDecimal b sin method : #{Math.sin(b)}\n\n"
puts "BigDecimal a sin method : #{Math.sin(c)}\n\n"
输出 :
BigDecimal a sin method : -0.5440211108893698
BigDecimal b sin method : 0.930039504416137
BigDecimal a sin method : -0.9071119034933154
示例 #2:
# Ruby code for BigDecimal.sin() method
# loading library
require 'bigdecimal'
# declaring bigdecimal
a = BigDecimal('12')*12
# declaring bigdecimal
b = BigDecimal('10')+(22 ** 7.1) ** 10
# declaring bigdecimal
c = -BigDecimal('-3')
# sin() method
puts "BigDecimal a sin method : #{Math.sin(a)}\n\n"
puts "BigDecimal b sin method : #{Math.sin(b)}\n\n"
puts "BigDecimal a sin method : #{Math.sin(c)}\n\n"
输出 :
BigDecimal a sin method : -0.49102159389846933
BigDecimal b sin method : 0.9772308602356717
BigDecimal a sin method : 0.1411200080598672