Exploration Guidelines

Although our explorations are made to be as easy to understand and use as possible, some problems still arise. There are several errors more common than any other:

* Zeros preceding decimals: enter ".32", not "0.32"
* Fractions: enter ".5", not "1/2"
* The pi symbol, ¶, is incorrectly displayed in some browsers. So, if you see this symbol: "¶", know that it is pi (about 3.14)

* The degree symbol, º, is incorrectly displayed in some browsers. So, if you see this symbol: "º", know that it is the "degree" symbol

* The "plus-or-minus" symbol, ±, is incorrectly displayed in some browsers. So, if you see this symbol: "±", know that it is the "plus-or-minus" symbol

Also, since the answer boxes are implemented using JavaScript, Netscape Navigator/Communicator should work fine, as well as Microsoft Internet Explorer. Other browsers, however, may or may not have problems, depending on their support of JavaScript. If you are using a browser that does not support JavaScript, write down your answers on paper and check them with the answer key. [an error occurred while processing this directive]