If it is log to the base 10, use the calculator to find 10 to that power.
If it is log to the base e, use the calculator to find e to that power.
Both the above are standard functions on all scientific calculators and are easy to work out on spreadsheets.
Alternatively,
you can find the antilog of the absolute value and then find the reciprocal.
Thus antilog(-3.5) = 1/antilog(3.5) etc.
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Find the base for the logarithm: it is likely to be 10 if you are a newcomer to logs or e (= 2.71828...) if you are more advanced. Then the antilog of x is 10x or ex.
Take the logarithm of your number, divide it by 3 then take the antilog.
The antilog of -4.45 refers to the inverse operation of taking the logarithm base 10 of a number. To find the antilog of -4.45, you would raise 10 to the power of -4.45. This can be calculated as 10^(-4.45), which equals approximately 3.54813389234.
The antilogarithm (or antilog) of a number is found by raising 10 to that number if it's a common logarithm (base 10). Therefore, the antilog of 4.33206 is calculated as (10^{4.33206}), which equals approximately 21,436.49.
If a number has an antilog whose integer part is n, then the number has n-1 digits before the decimal point.