Hacker News new | past | comments | ask | show | jobs | submit login

Newtonian notation is just doing time derivatives with a dot above them, so in Latex that is just \dot{x} = v . Which means dx/dt = v, or \ddot{x} = a.

Did you mean "Leibniz's" notation[1]? If so, if you use the esdiff package[2] it's just \diffp{y}{x} for partials or \diff{x}{y} for regular derivatives.

Lagrange's notation is when people do x' = v or x'' = a and Like the Newton's notation you kinda have to know from context that you are differentiating with respect to time unless they write it properly as a function with arguments which people often tend not to (at least I often tend not to I guess).

Sometimes people call the partial derivative notation where you use subscripts "Lagrange's notation" also[3]. So like f_x(x,y) = blah is the partial derivative of f with respect to x.

[1] Actually invented by Euler, or maybe some other guy called Arbogast or something[?sp]

[2] https://ctan.math.illinois.edu/macros/latex/contrib/esdiff/e...

[3] Even though that was also actually invented by Euler apparently.






\dot {} is not convenient to write everytime, and I suck at remembering to use macros. On the other hand, just writeing f' is far faster.



Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: