Type:
Module

mathematical functions

Provides mathematical functions.

Example:

require "bigdecimal"
require "bigdecimal/math"

include BigMath

a = BigDecimal((PI(100)/2).to_s)
puts sin(a,100) # -> 0.10000000000000000000......E1
sqrt
  • References/Ruby on Rails/Ruby/Classes/BigMath

sqrt(x,prec) Instance Public methods Computes the square root of x to the specified

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PI
  • References/Ruby on Rails/Ruby/Classes/BigMath

PI(prec) Instance Public methods Computes the value of pi to the specified number

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sin
  • References/Ruby on Rails/Ruby/Classes/BigMath

sin(x, prec) Instance Public methods Computes the sine of x to the specified

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log
  • References/Ruby on Rails/Ruby/Classes/BigMath

BigMath.log(x, prec) Class Public methods Computes the natural logarithm of

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atan
  • References/Ruby on Rails/Ruby/Classes/BigMath

atan(x, prec) Instance Public methods Computes the arctangent of x to the specified

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cos
  • References/Ruby on Rails/Ruby/Classes/BigMath

cos(x, prec) Instance Public methods Computes the cosine of x to the specified

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E
  • References/Ruby on Rails/Ruby/Classes/BigMath

E(prec) Instance Public methods Computes e (the base of natural logarithms)

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exp
  • References/Ruby on Rails/Ruby/Classes/BigMath

BigMath.exp(x, prec) Class Public methods Computes the value of e (the base

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