也不是很了解·

从未名BBS上找到的

两者主要区别，我不是很清楚 ，这几种模型在金融工程中用的是不是很广泛

.净终值NFV计算
2.修正内部收益率
3.修正久期
4.回收期PB，折现回收期DPB

下面是其它人的讨论

BA II plus is not as good
as BA II plus professional because the latter one has function of
calculating a bond's modified duration, which is necessary for the current
FM.

BA II plus is good at Financial
calculations since it has very strong mortgage function. But for those exam
focus more on stats calculations, BA II plus is not as convenient as TI-
30XIIS (since BA II plus doesn't display full equations on its screen. I
hate that especially when I need to input VERY long Black-Scholes equations
in some exam).

BAII is better than BAII plus professional except that BAII professional
cannot calculate Modified duration. BAII Pro is extremely difficult to use
in my opinion (those keys are so hard that you have to punch them in order
to key in a number)

I agree with you that it's not easy to input in BAII plus pro.
Not sure about the other BA models.

如果有哪位大虾 有使用经验，提供一下 感激涕零

BA II 应该是最便宜的吧。

BA II professional和前一个功能差不多，就是好看一点儿。

HP 12c 和其他的计算器输入方式不一样。但是熟悉了以后还挺好用的。