Life gets busy, and sometimes those basic math skills from school days get a little rusty. Whether you're budgeting, measuring for a DIY project, or just having a math-related brain teaser thrown your ...

Math can be fun, but it can also be tricky. Adding, subtracting, multiplying and dividing — numbers can really boggle the mind sometimes. And really, this is true at any age, with a lot of opinions ...

This file type includes high resolution graphics and schematics. You can build an analog calculator using a pulse-width modulator (PWM) to perform accurate four-quadrant multiplication and division.