func (c *Cubic) Status() status.Status { return status.CheckStatus(c.step) }
func (m *uniGradStruct) Status() status.Status { return status.CheckStatus(m.obj, m.grad) }
// CommonConverged checks if any of the elements of common have converged func (c *OptCommon) CommonStatus() status.Status { return status.CheckStatus(c.Iter, c.FunEvals, c.Time) }