In this date and age, you do not want to trust someone else to give you the right information. You will discover how easy it is to find the right answer, by using the step by little step instructions and examples in this reference book. The hardest part of math formulas is understanding what all of the symbols mean and the necessary steps to work the formula correctly. The goal of this book is to make formulas easy to understand and use. This was done by removing symbols whenever possible and instead show the nesessary step. In most cases only one element, at a time, of an equation has been illustrated, so that you can easily follow the steps taken. Whenever a calcultor is used it even tells you what buttons to push.
You will delighted to know how easy it is to work a math problem that in the past seemed to difficult. Check out the table of contents and you will see that this book address most of the areas in your life that requires a math formula or special number you need.