Texas Instruments TI-73 - Checking Version Numbers and Free Space; Verify Operating System Version and ID Number

TI-73 / TI-83 Plus Area Formulas Page 16
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9HULI\2SHUDWLQJ6\VW HP9HUVLRQDQG,'1XPEHU
The Area Formulas application is compatible with TI-73 Graph
Explorer software version 1.50 and higher or the TI-83 Plus
operating system 1.13 and higher.
To verify your operating system version number:
1. From the home screen, press
y L
.
2. Select
ABOUT
.
The operating system version number is displayed below the
product name and has the format x.yy. The ID number appears
on the line below the product number.