Discount Rate
|
05-11-2022, 06:22 PM
Post: #19
|
|||
|
|||
RE: Discount Rate
(04-11-2022 03:11 PM)Albert Chan Wrote: Plotting errors of both rate estimate, error(n version) ≈ -2 * error(p version) There are better ways to compensate the 1:2 error ratio. I recently updated guess_i(n, pv, pmt, fv) that keep C series terms upto I^2 Converting it with FV=0, I1 = guess_i(N, P, -1, 0): Rough estimate: \(\displaystyle I_0 = \frac{2\;(N-P)}{P(N+1)} \) With correction: \(\displaystyle I_1 = I_0 \left( \frac{6 + 1\;(n-1)\;I_0}{6 + 2\;(n-1)\;I_0} \right) = I_0 - \frac{I_0}{2 + \large \frac{6}{(N-1)\;I_0}} \) Redo examples: N= 36, P= 30 → I0 = .010811 → I1 = .010205 N=-36, P=-50 → I0 = .016000 → I1 = .017967 |
|||
« Next Oldest | Next Newest »
|
Messages In This Thread |
Discount Rate - SlideRule - 04-04-2022, 01:54 PM
RE: Discount Rate - Thomas Klemm - 04-08-2022, 07:44 PM
RE: Discount Rate - Albert Chan - 04-08-2022, 10:21 PM
RE: Discount Rate - Albert Chan - 04-09-2022, 12:50 PM
RE: Discount Rate - Eddie W. Shore - 04-10-2022, 11:29 PM
RE: Discount Rate - Albert Chan - 04-09-2022, 05:47 PM
RE: Discount Rate - Albert Chan - 04-10-2022, 04:03 AM
RE: Discount Rate - Thomas Klemm - 04-10-2022, 12:19 PM
RE: Discount Rate - Albert Chan - 04-11-2022, 01:18 AM
RE: Discount Rate - Albert Chan - 04-11-2022, 03:11 PM
RE: Discount Rate - Albert Chan - 04-11-2022, 03:57 PM
RE: Discount Rate - Albert Chan - 05-11-2022 06:22 PM
RE: Discount Rate - Thomas Klemm - 04-11-2022, 02:37 AM
RE: Discount Rate - Thomas Klemm - 04-11-2022, 08:48 PM
RE: Discount Rate - Thomas Klemm - 04-12-2022, 11:11 PM
RE: Discount Rate - Thomas Klemm - 04-12-2022, 11:13 PM
RE: Discount Rate - Thomas Klemm - 04-18-2022, 01:58 PM
RE: Discount Rate - rprosperi - 04-18-2022, 06:41 PM
RE: Discount Rate - Thomas Klemm - 04-18-2022, 07:03 PM
|
User(s) browsing this thread: 1 Guest(s)