5 ms·
Those formulas with i as interest rates are really tripping me up. I mean (1+i)^n just looks like it aught to be complex. Edit: I'm also not too happy with the
by contravariant 3y ago
Those formulas with i as interest rates are really tripping me up. I mean (1+i)^n just looks like it aught to be complex.
Edit: I'm also not too happy with the explanation of Feymann's trick, it fails to properly explain Feynman's trick, says n! is the gamma function, and applies the trick to an integral which follows directly from the definition of the Gamma function and cannot be simplified without that definition.
- beebmam 3y agoGood news! Real numbers are complex numbers!
- layer8 3y agoThat’s accidental complexity though, not essential complexity. ;)
- pkaye 3y agoThe "i" in (1+i)^n is the interest rate.
- kevinlinxc 3y agoHi, creator here. Thanks for the feedback, I've been kind of using this site just to store things that I find personally useful and in ways that I, an undergraduate student, understand so I'm sure there are some corners being cut like in the case of Feynman's trick. Do you think you could help me improve that page? The source code is here: https://github.com/stemformulas/stemformulas.github.io/blob/main/content/formulas/feynmanns-trick/index.md https://github.com/stemformulas/stemformulas.github.io/blob/...
- contravariant 3y agoI'd remove that page entirely, perhaps in favour of one that simply lists the definition of the Gamma function (which is basically the formula there right now). You can't summarize Feynman's trick in one formula. At best you can list an example, and I'd argue this isn't the best one.