User Manual

4.ENG
Correcting Entry Errors
At any point in a calculation, you can press - twice to
clear all calculations, including any errors, and start over.
Clearing an Error Condition
The display shows E when an error, overflow, or underflow
occurs or when you enter an improper operation. No entry
from the keyboard is accepted until you press -, which
clears the error condition and all pending operations.
Order of Calculations
The Algebraic Operating System (AOS™) of the TI-25X
Solar completes operations in the order of priority listed
below.
1. Single-variable functions (trigonometric, logarithmic,
square, square root, factorial, percent, reciprocal, angle
conversion, and change sign).
2. Two-variable functions:
¦ Exponential (y
x
) and roots (
x
‡y)
¦ Multiplication and division
¦ Addition and subtraction
3. l completes all operations.