PO BOX 186
Pennington, NJ 08534 USA
For Windows software support for discontinued version of SolveIT!, C-Value! & AmortizeIT!:
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For any question or issue you may have with an online calculator, please leave your question in the comment section on the appropriate calculator page. We'll be happy to help you. Thank you.
I have been creating software calculators, first for DOS, then Windows since 1983.
The online calculators were first released in 1996 and were previously hosted at: