Como converter números decimais ou fracionados em inteiros no HP30b?

12312020, 07:43 PM
(This post was last modified: 12312020 07:48 PM by FabioBrasil.)
Post: #1




Como converter números decimais ou fracionados em inteiros no HP30b?
On the HP30b, is it possible to enter noninteger P / YR values and thus not get an ERROR message? At HP, is there any way to convert decimal or fractional numbers to whole numbers (C / YR and P / YR)?
Currently, I find interest rates equivalent, either by a program on the HP30b, or by the traditional method. Is there a possibility to do this without a program? Example: I have the rate 1.8% bimonthly (2 months) and I want the equivalent effective rate for quarter (3 months). With the program I do: 1.8 I / YR 3 INPUT 2 ÷ N SHIFT PRGM = Or manually: 1.8 I / YR PV = 1 N = 1 FV =? (= 1,0002) 2 INPUT 3 ÷ N I / YR =? Answer: 2.7% Sorry for the question and errors in English (I use Google Translate), but I'm starting on the HP30b. Still thanks and happy holidays! 

12312020, 10:34 PM
Post: #2




RE: Como converter números decimais ou fracionados em inteiros no HP30b?
Do you have the Owner's Manual for your 30b?
There is a copy you can download here: https://literature.hpcalc.org/official/h...ugen.pdf Bob Prosperi 

01012021, 12:24 AM
Post: #3




RE: Como converter números decimais ou fracionados em inteiros no HP30b?
1.8% bimonthly rate to quarterly (3months) effective rate:
1.018 ^ (3/2) = 1.027121138 // effective quarterly rate = 2.7121138% 

01012021, 01:58 PM
Post: #4




RE: Como converter números decimais ou fracionados em inteiros no HP30b?
One way to do it manually is to pretend that 1.8% is an annual rate compounded yearly for 6 years, then determine the interest rate that would produce the same future value in 4 years:
Code: 1 SHIFT P/YR — Ian Abbott 

01012021, 11:39 PM
Post: #5




RE: Como converter números decimais ou fracionados em inteiros no HP30b?
(01012021 01:58 PM)ijabbott Wrote: One way to do it manually is to pretend that 1.8% is an annual rate compounded yearly for 6 years, then determine the interest rate that would produce the same future value in 4 years No need to pretend: (I/Yr) ÷ (P/Yr) = I/P By setting P/Yr = 1, whatever entered into I/Yr is I/P (interest rate per period). So, the code can also interpret as first getting APY (FV = 1.11297822601 → APY ≈ 11.2978%), then convert to quarterly rate (I/P ≈ 2.7121%, P = 3 months) (12312020 07:43 PM)FabioBrasil Wrote: On the HP30b, is it possible to enter noninteger P / YR values and thus not get an ERROR message? This also answered OP question. Example: P/Yr = 3.14, I/Yr = 6% is equivalent to P/Yr = 1, I/P = I/Yr = 6%/3.14 

01082021, 09:00 PM
Post: #6




RE: Como converter números decimais ou fracionados em inteiros no HP30b?
Thank you all


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