Como converter números decimais ou fracionados em inteiros no HP30b?

[Albert Chan]

(01-01-2021 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)

(12-31-2020 07:43 PM)FabioBrasil Wrote:  On the HP30b, is it possible to enter non-integer 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