The tutor brings up what he finds a fascinating concept: internal rate of return. The way I understand it, the internal rate of return is the interest rate that would make possible an exact sequence of deposits and withdrawals, with …

Financial math: Hewlett-Packard 10B: internal rate of return Read more →

A lifetime ago, the tutor studied financial planning.  That’s when he got acquainted with the HP-10B. Of the financial calculators I know, the Hewlett-Packard HP-10B is potentially the easiest to use. One feature of particular value to anyone in financial …

Financial math: interest rate conversions on the HP-10B Read more →