Hewlett Packard wrote: HP 50g Graphing Calculator (F2229AA#ABA).The new HP 50g Graphing Calculator provides the best in power, flexibility and connectivity for math, science and engineering professionals and college students. It now features a more capable SD card slot, 2.5 MB total memory**, new RS232 and USB connectivity, and a built-in intelligent editor that gives you more capability than ever before. On 2010-03-11 lucase has found the following links on Electronics relating to Graphing; interesting. Folks have gave this item a popularity rating of 8 over 10.
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