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# Why negative numbers don't have logarithim?

Updated: 4/28/2022 Wiki User

10y ago

The logarithmic function is not defined for zero or negative numbers.

Logarithms are the inverse of the exponential function for a positive base. Any exponent of a positive base must be positive. So the range of any exponential function is the positive real line. Consequently the domain of the the inverse function - the logarithm - is the positive real line. That is, logarithms are not defined for zero or negative numbers.

(Wait until you get to complex analysis, though!) Wiki User

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## A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Q: Why negative numbers don't have logarithim?
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