4 ms·
https://en.wikipedia.org/wiki/Riemann_sum https://en.wikipedia.org/wiki/Riemann_sum usually uses ∆. See also the explanation of ∆ at https://en.wikipedia.org/wi
by wrycoder 5y ago
https://en.wikipedia.org/wiki/Riemann_sum https://en.wikipedia.org/wiki/Riemann_sum usually uses ∆. See also the explanation of ∆ at https://en.wikipedia.org/wiki/Derivative#Explanations https://en.wikipedia.org/wiki/Derivative#Explanations .
That's the sense in which I'm using ∆, which is common, at least in the US.
- Jensson 5y agoBut this is a physics paper, that isn't how you use uppercase delta in physics. It is just a range. In physics however you do a ton of approximations all the time in ways mathematicians hate (you don't care about errors smaller than you can measure), so uppercase delta is often approximated with derivatives etc, but it isn't a derivative. Math in physics is way more practical and uses very different techniques than math in math, often because physicists invented the math first and mathematicians later went and formalized it.