This calculator determines the logarithm of a positive number (x) for any given base (b). Simply input your values to see the exponent required to reach that number.
The logarithm of 100 with base 10 is: 2
This means 102 = 100
A logarithm answers the question: To what power must we raise the base to get this number?
Formula: logb(x) = logk(x) / logk(b)
logb(x) = logk(x) / logk(b)
Suppose you want to find the log of 8 with a base of 2.
No, the base must be positive and not equal to 1 because 1 raised to any power is always 1.
A natural log (ln) is a logarithm with the mathematical constant e (approximately 2.718) as its base.
In the real number system, logarithms of negative numbers are undefined because a positive base raised to any power is always positive.
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