The % Command

Command Summary

Short for dividing by 100.

Command Syntax


Menu Location

This command can only be accessed through a hex editor (its hex code is 0xBB 0xDA)

Calculator Compatibility

TI-83/84+/SE, OS v1.15+

Token Size

2 bytes

The % symbol is an undocumented command on the TI-83 series calculators starting with OS version 1.15. It's useful as a shortcut for percents - it divides by 100, so it will convert numbers to percentages. For example, 50% will become 50/100 or 1/2, which is just what 50% should be.

Although this trick can save you a few bytes, it also makes your program incompatible with old OS versions — it's up to you to decide if the tradeoff is worth it.

Error Conditions

  • ERR:INVALID is thrown on older operating system versions.

Related Commands


Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-Noncommercial-No Derivative Works 2.5 License.