Education Technology

Solution 11777: Logarithm Calculations on Texas Instruments Graphing Calculators.

How do I calculate logarithms using Texas Instruments graphing calculators?

The following examples show how to compute a logarithm on Texas Instruments graphing calculators.

Using the TI-80, TI-81, TI-82, TI-83 family, TI-84 Plus family, or TI-Nspire™ handheld in TI-84 Plus mode, TI-85, and TI-86:

Example: Find the Log of 100.

To Solve:

1) Press the [LOG] key.
2) Input 100.
3) Press the [ENTER] key.
4) The displayed answer will show 2.

Using the TI-89 family, TI-92 family, and Voyage™ 200 graphing calculators:

Example: Find the Log of 100.

To Solve:

1) Press [CATALOG].
2) Select log.
3) Input 100.
4) Close the parentheses.
5) Press [ENTER].
6) The calculator displays the answer 2.

Please Note: Log can also be typed directly using the keyboard.

For more information regarding your Texas Instruments graphing calculator, please refer to the guidebooks section.