Creating Better Input Boxes的副本

How does one create an input box for numeric values?[br][br]This is a simple example of how to create a blank Input Box for numeric input. The number r is parsed from a text value to a number. A full sample is done to allow the user to see all steps.
Finally decided to get this down pat. Thanks forum members.[br][br][url=www.geogebra.org/forum/viewtopic.php?f=20&t=25255&p=149883&hilit=blank+input+box&sid=393957e9dbf4572eacec5e4e86a37f7c#p149883] Post subject: Input box value resets to linked variables old value[/url]

Information: Creating Better Input Boxes的副本