[[미분,differential]] $ds$
[[차분,difference]] $\Delta s$
{
ex.(del ok)
https://ko.wikipedia.org/wiki/자기회귀누적이동평균#차분
}

해당 [[방정식,equation]]:
[[미분방정식,differential_equation]]
[[차분방정식,difference_equation]]
See [[미분방정식과_차분방정식,differential_equation_and_difference_equation]]