Old Friend
I originally used the 12-C in 1984 as a new CFP. Then it was a rare tool and I used to dazzle bankers by being able to calculate mortgage payments faster than they could.The realy amazing feature then was the ability to calculate the tax deductible interest for any given year of a mortgage just as fast. Now I have it in my Apple Dock mostly out of nostalgia. It is still my calculator of choice almost 30 years later at the ripe old age of 73.
LeoBurns about
Vicinno Financial Calculator