Definitions
from The American Heritage® Dictionary of the English Language, 4th Edition
 n. The quantity by which another quantity, the dividend, is to be divided.
from Wiktionary, Creative Commons Attribution/ShareAlike License
 n. A number or expression that another is to be divided by.
 n. An integer that divides another integer an integral number of times.
from the GNU version of the Collaborative International Dictionary of English
 n. The number by which the dividend is divided.
from The Century Dictionary and Cyclopedia
 n. In arithmetic: A number or quantity by which another number or quantity (the dividend) is divided.
 n. A number which, multiplied by an integer quotient, gives another number of which it is said to be a divisor.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
 n. one of two or more integers that can be exactly divided into another integer
 n. the number by which a dividend is divided
Etymologies
Sorry, no etymologies found.
Examples

The Producitivity Portfolio blog explains how to test to see if your divisor is 0, and if so, display a blank value using something like = IF (D2 = 0,, C2/D2).

The value of this number  known as the index "divisor"  is adjusted regularly to reflect index additions and deletions, share buybacks or issuances, spinoffs and other events that affect a company's market cap.

This can be done various ways mathematically, but at Dow Jones it is handled by changing the "divisor"  a number that is divided into the total of the stock prices.

/: int, int → int: safely divides two integers (returns 1 if divisor is 0)

The basic idea appears to be use multiple running means to identify nodal points in sunspot data, and then to use a cubic fit between points so identified as a divisor for a mean somehow determined at each data point, although it is not quite clear to me what they did from what they have written!

He adds: "And we still divide that total to get the final number, but we use an index divisor, which is adjusted for stock splits and other corporate actions that might distort the continuity of the calculation."

"And we still divide that total to get the final number, but we use an index divisor, which is adjusted for stock splits and other corporate actions that might distort the continuity of the calculation," Mr. Prestbo adds.

And finally, when the election was over and it was time to settle up, a third species of criminal, the socalled divisor, would distribute it.

Open and clickthrough rates declined marginally, because the divisor is the number delivered, not the number sent.

To calculate the DJIA, the current prices of the 30 stocks that make up the index are added and then divided by the Dow divisor, which is constantly modified.
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