Hello,
There is a key for that, the one labeled [ln] for natural logarithm. For log in base 10 use the key [LOG]
[LN] 10 [ENTER] gives 2.302585093.
As you certainly know, you cannot take the logarithm of a negative number, nor of Zero.
Hope it helps.
Comments:
Nov 02, 2009
- OOPS. Should read: For log in base 10 use the key [LOG]. Thus [LOG]10 [ENTER] gives 2.302585093
casio fx-83wab how do i calculate 3 to the power 28. i don't have the usual power button ^ that is...
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casio fx-83wab how do i calculate 3 to the power 28. i don't have the usual power button ^ that is on other calculators?