Weights And Measures Plus converts units of measurement such as yards or fluid ounces to gallons. It features conversions for 237 units in 18 categories. WAM+ is unique in that input and output can be in either Decimals or Fractions due to our unique integrated fraction converter. All calculations are executed in 22 place precision for the highest possible accuracy. ALL units are defined in our comprehensive online reference and there are numerous charts and tables. This makes WAM+ both a useful reference work and a great educational tool. In addition to the Unit Converter, an easy-to-use Trigonometry Calculator is included along with a review of trig and solved trig problems. It incorporates a Dynamic Triangle™ that helps promote a better visualization of the relationships between the sides and angles of a right triangle. Also featured are Temperature scales with Wind Chill Factor, a Roman Numeral converter, a Number System/ASCII utility and our new World Currency Exchange tool (updateable daily from the Net). WAM+ may be used by itself, or as an aid to learning about the metric system, decimals, fractions, or trigonometry. A table of metric prefixes, and many tutorials are included. Additionally, there is information about decimals, fractions, and scientific notation.