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Author Archives: mathscinotes
Rule of 72 Redeux
I frequently have to work on “time value of money” problems. Good approximate solutions to these problems can often be obtained by using the “Rule of 72.” The Rule of 72 will tell you approximately how many interest payment intervals … Continue reading
Posted in Financial, Management
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Estimating Product Cost Part 1
The Problem I frequently am required to estimate product cost in the middle of some meeting with little or no preparation. As you gain more experience with building product, you soon are able to estimate a product's cost quickly for … Continue reading
Posted in Management
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The Capacitor Puzzle That Got Me My First Job
In the spring of 1979, I was a soon-to-be-graduated electrical engineer that needed a job. As with other young engineers, I started to look for work during my last semester of school and I got a few nibbles. The most … Continue reading