玛丽亚·德鲁伊科娃是“自然数学”的创始人之一，她曾向5岁的儿童教授基础微积分概念。
Maria Droujkova is a founder of Natural Math, and has taught basic calculus concepts to 5-year-olds.
牛顿发展了现代微积分的基础数学概念和技术。
Newton developed mathematical concepts and techniques that are fundamental to modern calculus.
从数学意义上来说，这是dx部分加上dy部分的线积分。
On the math it is a line integral of something dx plus something dy.
应用推荐