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The RPNcalc-12c is a full featured financial and business RPN calculator.

All Features: at a glance:

✭ Display:
∙ Fixed number format
∙ Scientific number format
∙ Status annunciators

✭ Math:
∙ +, -, ×, ÷, %, 1/x, root, x^y, ln, e, ...and many more
∙ Integer truncation
∙ % change

✭ Statistical:
∙ Mean standard deviation of 2 variables
∙ Summation
∙ Linear regression
∙ Correlation coefficient
∙ Factorial

✭ Time Value of Money:
∙ Number of payments
∙ Interest rate
∙ Present Value
∙ Payment
∙ Future Value

✭ Cash Flow Analysis:
∙ Net present value
∙ Internal rate of return

✭ Amortization:
∙ Accumulated Interest
∙ Balance

✭ Depreciation:
∙ Straight line
∙ Sum of the years digits
∙ Declining balance

✭ Bonds and calendar functions:
∙ Bond price
∙ Bond yield
∙ Date arithmetic / calendar functions