The Hewlett-Packard Xpander is a graphing calculator with formula input logic. It has 30 keys, and an LCD (liquid crystal) display. Note: Prototype. Was cancelled when HP pulled out of calculator market.
Facts at a glance:
If you have a Hewlett-Packard Xpander that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement: