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  1. Why must the base of a logarithm be a positive real number not equal …

    Feb 25, 2014 · Why must the base of a logarithm be a positive real number not equal to 1? Ask Question Asked 12 years, 1 month ago Modified 6 years, 4 months ago

  2. Natural log of a negative number - Mathematics Stack Exchange

    Jan 10, 2021 · My teacher told me that the natural logarithm of a negative number does not exist, but $$\ln (-1)=\ln (e^ {i\pi})=i\pi$$ So, is it logical to have the natural logarithm of a negative number?

  3. algebra precalculus - Inequality sign change with logarithm ...

    Oct 11, 2020 · Why does the inequality sign change when applying a logarithm on both sides, with the base less than $1$? I came across the following math which I solved if 2 ways, $$ \left (\frac {1} …

  4. notation - The logarithm is non-linear! Or isn't it? - Mathematics ...

    Aug 15, 2015 · The logarithm is an isomorphism between the vector space of positive-real numbers to the vector space of real numbers. And as every isomorphism is a linear function, so is the logarithm.

  5. What is the point of logarithms? How are they used?

    Logarithms are defined as the solutions to exponential equations and so are practically useful in any situation where one needs to solve such equations (such as finding how long it will take for a …

  6. Why is it called "antilog" or "anti-logarithm" rather than ...

    Aug 10, 2020 · Until we make the generalization of exponents to arbitrary powers, there is no hope of describing the inverse logarithm as an exponential function. One "convenience" of the antilog …

  7. What algorithm is used by computers to calculate logarithms?

    I would like to know how logarithms are calculated by computers. The GNU C library, for example, uses a call to the fyl2x() assembler instruction, which means that logarithms are calculated directl...

  8. The difference between log and ln - Mathematics Stack Exchange

    Dec 5, 2023 · Beware that $\log$ does not unambiguously mean the base-10 logarithm, but rather "the logarithm that we usually use". In many areas of higher mathematics, $\log$ means the natural …

  9. algebra precalculus - Intuition behind logarithm change of base ...

    Dec 28, 2017 · I try to understand the actual intuition behind the logarithm properties and came across a post on this site that explains the multiplication and thereby also the division properties very nicely:

  10. education - how to see the logarithm as the inverse function of the ...

    Jun 17, 2014 · how to see the logarithm as the inverse function of the exponential? Ask Question Asked 11 years, 10 months ago Modified 9 years, 6 months ago