Re: [math-fun] Terminology for exponentiation
I wrote (mildly edited): << When we write a base A to a power c to get the number A^c we say we "exponentiate A to the power c". I seek an appropriate verb so the the power is the object, reversing the emphasis: I.e., we use A *to do what* to c ??? Any help will be appreciated.
A friend has pointed out that the word "exponentiate" already has this meaning, and that the default base is e. The online OED confirms this: << To raise e or some other base (BASE n.1 18) to the power of; to subject to exponentiation It's not entirely clear to me what's the best preposition to use when the base is not e and so must be mentioned. If it were a logarithm, to get log_b(x) from x is standardly "take the logarithm to the base b of x", or just "take the base-b logarithm of x". In the present case, maybe "from" is appropriate -- as in "exponentiate c from the base A" ? --Dan ________________________________________________________________________________________ "Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read." --Groucho Marx
How about "exponentiate c logA" ? On Thursday 06 May 2010 16:08:13 Dan Asimov wrote:
I wrote (mildly edited):
<< When we write a base A to a power c to get the number A^c we say we "exponentiate A to the power c".
I seek an appropriate verb so the the power is the object, reversing the emphasis:
I.e., we use A *to do what* to c ???
Any help will be appreciated.
A friend has pointed out that the word "exponentiate" already has this meaning, and that the default base is e.
The online OED confirms this:
<< To raise e or some other base (BASE n.1 18) to the power of; to subject to exponentiation
It's not entirely clear to me what's the best preposition to use when the base is not e and so must be mentioned.
If it were a logarithm, to get log_b(x) from x is standardly "take the logarithm to the base b of x", or just "take the base-b logarithm of x".
In the present case, maybe "from" is appropriate -- as in "exponentiate c from the base A" ?
--Dan
_________________________________________________________________________ _______________ "Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read." --Groucho Marx
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