Texas Instruments TI-89 Titanium
The Texas Instruments TI-89 Titanium 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 |
| Original price | $140 |
| Year introduced | 2004 |
| Current price | amazon.com |
Replacements:
If you have a Texas Instruments TI-89 Titanium that is no longer working, you can first try replacing the 4xAAA + CR1620 3V. If that doesn't solve the problem, then a repair might be possible, although you have to weigh up the costs against just buying a new one, as this model is still currently available.