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Why you are taking only positive values in the logarithms?

Updated: 8/20/2019
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11y ago

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You must be referring to some problem where all the numbers are 1 or above.

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11y ago
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Q: Why you are taking only positive values in the logarithms?
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What is logarithm of log -2?

There is no answer. Logarithms operate only on non-negative numbers. * * * * * Actually, logarithms are not defined for 0 either, so they operate only on positive numbers.


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A minus minus a minus will give a positive result. It will depend on the actual values. It will cause a positive movement, but still could result in a negative number. Consider these two examples. In both cases there is a positive movement but only the second results in an actual positive number:-6 - -2 = -4-2 - -6 = 4