Method: Angle#tan

Defined in:
lib/angles.rb

#tan ⇒ Object Also known as: tangent, slope 



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# File 'lib/angles.rb', line 181

def tan
  return nil if self.radians == @@PI / 2 or self.radians == 3 * @@PI / 2

  tan = Math.tan(self.radians).round(@@ROUND_TRIG)
  (tan == 0) ? 0 : tan
end