HP_30b
The HP 30b (NW238AA, variously codenamed "Big Euro", "Mid Euro" and "Fox"[1]) is a programmable[2] financial calculator from HP which was released on 7 January 2010.[3] The HP 30b is an advanced version of the HP's prior model HP 20b. Featuring a two line alpha numeric display, ability to input data via Reverse Polish Notation, Algebraic and normal Chain algebraic methods, and twelve digit display.
This ARM powered calculator also has some limited scientific functions which is relatively rare in financial calculators. Also, it has a built in Black-Scholes Equation,[2] for calculating theoretical premium for calls and puts, Modified Internal Rate of Return and Financial Management Rate of Return, a first.
The HP 30b is not allowed in any major exam like CFA Charter exam.