金融计算器：TI-BA II plus / TI-BA II plus professional / HP 12C --- 如何選擇 ?

usually, we use TI-BA II Plus

the difference between the ordinary edition of TI-BA and professional edition lies on the calculation of payback period and discounted payback period. Using TI-BA II you need to calculate by yourself.

Also, it is easier to use TI than HP

Hi

Could you tell me what are the keystrokes for calculating Payback Period & Discounted Payback Period on HP 12c Plat please?

Cheers