Used Math

I have regularly used this handy paper back math book since I was a college engineering student in 1977. I have found it to be the most useful of all of the math books that I own. It is very useful for engineers, because it has very clear and useful sections on units and dimensions, and error analysis, which are not always taught so clearly in college. It has numerous useful diagrams and concise explanations to jog your memory on basic engineering mathematics such as algebraic functions, matrices, sinusoidal functions, exponential functions, gaussian distributions, analyticial geometry, and complex numbers. It also has very concise and clear sections on both differential and intergral calculus for us engineers who don't use them all the time and need a refresher. I have worn out my copy of the book and have decided that I need to buy a new copy.