Texas Instruments TI-89
The Texas Instruments TI-89 is a graphing calculator with 10 digits precision and formula input logic. It has 50 keys, and an LCD (liquid crystal) display. The power source is 4xAAA + CR1620 3V. The calculator was manufactured in Taiwan.
Facts at a glance:
Feature | Value |
---|---|
Type | Graphing |
Keys | 50 |
Precision | 10 |
Logic | Formula |
Display type | LCD |
Display size | 160 |
Printer | External |
Length | 182mm |
Width | 81mm |
Thickness | 20mm |
Weight | 182g |
Power Source | 4xAAA + CR1620 3V |
Country | Taiwan |
Year introduced | 1998 |
Year discontinued | 2000 |
Replacements:
If you have a Texas Instruments TI-89 that is no longer working, you can first try replacing the 4xAAA + CR1620 3V batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: