Method: SyMath::Poly::DUP#diff

Defined in:
lib/symath/poly/dup.rb

#diff ⇒ Object

Fast differentiation of polynomial



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# File 'lib/symath/poly/dup.rb', line 430

def diff
  d = degree
  res = @arr.each_with_index.map { |e, i| e*(d - i) }
  res.pop

  return new_dup(res)
end