Recall that 10 is the basis of Scientific Notation and logx is the logarithm that has a base of 10.

Enter 10⁵ into the calculator.  The base is 10 and the exponent is 5.

Step 1: Enter the base of 10.  Press the yellow 2nd button, then  10x located in yellow above the LOG button (three buttons above ON). Notice that 10, the karat ^, and the left parenthesis show up on screen.

Step 2: Enter the exponent. In this example, it would be 5
Step 3: Enter the right parenthesis.
Step 4: Press ENTER.  The answer will show up on the right side of the screen.

Similarly we can evaluate a logarithm of base 10.  For example, evaluate log(17)

Step 1: Enter log.   Press the LOG button (three buttons above ON). Notice that the log and the left parenthesis show up on screen.

Step 2: Enter 17, then enter the right parenthesis.

Step 3: Press ENTER.  The answer will show up on the right side of the screen.

 

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This site was last updated 08/29/02 and is maintained by Donna L. Sperry