10x
On a Casio calculator you can calculate powers of 10 with the keys
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log
Example 1
To calculate 100 = 1
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log 0 = 0
1.
Example 2
To calculate 101.25 = 17.782…
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log 1 · 2 5 = 1.25
17.7827941
Example 3
To calculate 10−1 = 0.1
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log − 1 = −1
0.1
Example 4
To calculate 1025
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log 2 5 = 25
1.25
Details
The functions log and 10x are on the same key. That is so because these functions have to do with the number 10.