The HP10B business calculator has an algebraic entry system and a logical and intuitive keyboard layout with easy-to-read labels. The LCD display screen features up to 12 characters on one line of text. Small and sturdy, this calculator is easy to slip into your backpack or briefcase and bring to class or your workplace. Hewlett-Packard offers a one-year warranty on the HP10B. --Dana Van Nest

The HP 10B is a directly positioned competitor to the TI-BA-II+, but HP's entry is superior. The keys feel more solid, the machine itself "seems" better made. Having worn out more than one of each, my experience has been that the HP has more staying power. And, the TI-BA-II+ often requires more keystrokes to accomplish the same tasks (i.e., NPV calculations). ...

The HP 10B has a well written manual, including examples on using the function. HP has the manual available on-line on their website for the inevitable time that the user needs it and has lost the original.

While there are cheaper financial calculators, it seems that this particular level is the minimum I would recommend to professionals or students. Less expensive versions, while saving a few dollars, miss important features. As a general rule of thumb, if the calculator can perform the "IRR" function, as this can, it will be able to handle pretty much any calculation into which the finance student, professonal, or banker will run. Lesser machines do not have this function.

Ironically, even larger fancier calculators, such as the venerable HP-12C, are in my estimation inferior as well. The 12C uses RPN logic which, while saving even more keystrokes, is simply foreign to most students. More importantly, some functions, such as the Time Value of Money functions, on the 12C require interpretation. On the 12C, for example, solving for the number of periods in an annuity, the value gets rounded UP to the next integer.