Quantity

# Quantity

WordNet

### noun

(1)   How much there is of something that you can quantify
(2)   An adequate or large amount
"He had a quantity of ammunition"
(3)   Something that has a magnitude and can be represented in mathematical expressions by a constant or a variable
Wiktonary

From , from

### Noun

1. A fundamental, generic term used when referring to the measurement (count, amount) of a scalar, vector, number of items or to some other way of denominating the value of a collection or group of items.
You have to choose between quantity and quality.
2. An indefinite amount of something
Some soap making oils are best as base oils, used in a larger quantity in the soap, while other oils are best added in a small quantity.
Olive oil can be used practically in any quantity.
3. A specific measured amount
This bag would normally costs $497.50 for a quantity of 250, at a price of$1.99 per piece.
Generally it should not be used in a quantity larger than 15 percent.
4. A considerable measure or amount
The Boeing P-26A was the first all-metal monoplane fighter produced in quantity for the U.S. Army Air Corps.
5. Indicates that the entire preceding expression is henceforth considered a single object.
x plus y quantity squared equals x squared plus 2xy plus y squared.

#### Usage notes

• In mathematics, used to unambiguously orate mathematical equations; it is extremely rare in print, since there is no need for it there.

#### Quotations

• 2006, Jerome E. Kaufmann and Karen Schwitters, Elementary and Intermediate Algebra: A Combined Approach, p 89
For problems 58-67, translate each word phrase into an algebraic expression.
(...)
65. x plus 9, the quantity squared
• 2005, R. Mark Sirkin, Statistics For The Social Sciences, p137
The second, $\left(\sum x\right)^2$, read "summation of x, quantity squared," tells us to first add up all the xs to get $\sum x$ and then square $\sum x$ to get $\left(\sum x\right)^2$.
• 1985, Serge Lang, Math!: Encounters with High School Students, p54
ANN. $ra$ quantity cubed.
SERGE LANG. That's right, $\left(ra\right)^3$.