Method register2

ar.py:363–366

(
      self, a: str, b: str, m: float, n: float, dep: pr.Dependency
  )

    self.deps += [dep]

  def register2(
      self, a: str, b: str, m: float, n: float, dep: pr.Dependency
  ) -> None:
    self.register([(a, m), (b, -n)], dep)

  def register3(self, a: str, b: str, f: float, dep: pr.Dependency) -> None:
    self.register([(a, 1), (b, -1), (self.const, -f)], dep)