Texas Instruments TI-89 User Manual

Operating the Calculator

158

2. Press:

í appears in the display.

3. Type the exponent as an integer with up to 3 digits. You can use a negative

exponent.

Entering a number in scientific notation does not cause the answers to be displayed in
scientific or engineering notation.

Entering Expressions and Instructions

You perform a calculation by evaluating an expression. You initiate an action by
executing the appropriate instruction. Expressions are calculated and results are
displayed according to the mode settings.

The display format is determined by the
mode settings and the magnitude of the
number.

Represents 123.45

-2