I often get lots of questions about how to enter numbers in

scientific notation in the calculators. This kind of depends

on the calculator you are using. Generally, especially for most

TI-30 calculators, using the EE (EXP) key you would do the following:

Enter 2 x 10² : 2 EE 2 (the EE key stands for "x 10")

          2 x 10^-2 : 2 EE +/- 2 (the +/- is that key on the calc.)

               10³ : 1 EE 3 (10³ is actually 1 x 10³)

For the latter case, you need to enter the 1 before the EE key on many

of the calculators. Not all of the allowed calculators require you to

enter the 1 first but you won't go wrong by doing it. Also, on many

newer calculators the EE key is a "2nd" function key (i.e. you have

to hit the "2nd" key first.)

As stated above, the EE or EXP key stands for "x 10". I recently

saw a calculator with a “ x 10ⁿ ” key in place of the EE or EXP key.

Some calculators will actually show the "x 10" in the display.

Others don’t but the power of 10 is kind of raised up a little from

the line and smaller.

If you still have problems come see me or a TA.

Dr. Zellmer