Module: SearchPi

Includes:
BigMath
Defined in:
lib/search_pi.rb,
lib/search_pi/version.rb

Constant Summary collapse

VERSION = 
"1.0.0"

Instance Method Summary collapse

Instance Method Details

#find(number, pattern) ⇒ Object 



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# File 'lib/search_pi.rb', line 11

def find(number, pattern)
  source     = number.to_s
  regex      = Regexp.new pattern.to_s
  match_pos  = source.index regex
  return nil if match_pos.nil?
  pre_match  = source[( (match_pos - 10) >= 0 ? (match_pos - 10) : 0 )..(match_pos-1)]
  post_match = source[(match_pos + pattern.to_s.size + 1)..(match_pos + pattern.to_s.size + 11)]
  {pre_match: pre_match,
   match_pos: match_pos,
   post_match: post_match,
   match: pattern}
end

#pi(precision) ⇒ Object 



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# File 'lib/search_pi.rb', line 7

def pi(precision)
  BigDecimal(PI(precision))
end