Ruby | BigDecimal cos() function

BigDecimal#cos() : cos() is a BigDecimal class method which returns the value of cosine to the specified number of digits of precision, numeric.

Syntax: BigDecimal.cos()

Parameter: BigDecimal values

Return: the value of cosine to the specified number of digits of precision, numeric.

Example #1 : Example for cos() method

# Ruby code for BigDecimal.cos() method

# loading library
require 'bigdecimal'
require 'bigdecimal/util'

require "bigdecimal/math"

include BigMath

# declaring bigdecimal
a = BigMath.cos(BigDecimal("10"), 2).to_s

# declaring bigdecimal
b = BigMath.cos(BigDecimal("0"), 1).to_s

# declaring bigdecimal
c = BigMath.cos(BigDecimal("-1"), 3).to_s

# cos() method
puts "BigDecimal a cos method : #{a}\n\n"

puts "BigDecimal b cos method : #{b}\n\n"

puts "BigDecimal c cos method : #{c}\n\n"

Output :

BigDecimal a cos method : -0.83907152907645246825216692820607553E0

BigDecimal b cos method : 0.1E1

BigDecimal c cos method : 0.540302305868139718063666551191971443E0

Example #2 :

# Ruby code for BigDecimal.cos() method

# loading library
require 'bigdecimal'
require 'bigdecimal/util'

require "bigdecimal/math"

include BigMath

# declaring bigdecimal
a = BigMath.cos(BigDecimal("120"), 2).to_s

# declaring bigdecimal
b = BigMath.cos(BigDecimal("1.0"), 4).to_s

# declaring bigdecimal
c = BigMath.cos(BigDecimal("-3"), 1).to_s

# cos() method
puts "BigDecimal a cos method : #{a}\n\n"

puts "BigDecimal b cos method : #{b}\n\n"

puts "BigDecimal c cos method : #{c}\n\n"

Output :

BigDecimal a cos method : 0.81418097052656177616342509565903133E0

BigDecimal b cos method : 0.540302305868139717171666551191971443E0

BigDecimal c cos method : -0.9899924966004454524570754831726682E0