For example, in a calculus course it's not terribly difficult to memorize the formula for integrationbyparts for integrals.
例如,在微积分课程中,记下分步积分法的公式并不是特别难。
2
Well, I don't expect that you would need integrationbyparts, although I still hope that some of you remember it from single variable calculus.
不要求掌握分部积分公式,但还是希望,有些人能在单变量积分中记住它。
3
The other method is to perform the integrationbyparts only to dispersion term, then introduce the boundary conditions, and finally obtain the variation equation.