Crossword clues for subtraction
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Compound \Com"pound\,
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[OE. compouned, p. p. of compounen. See Compound, v. t.] Composed of two or more elements, ingredients, parts; produced by the union of several ingredients, parts, or things; composite; as, a compound word.
Compound substances are made up of two or more simple substances.
--I. Watts.Compound addition, subtraction, multiplication, division (Arith.), the addition, subtraction, etc., of compound numbers.
Compound crystal (Crystallog.), a twin crystal, or one seeming to be made up of two or more crystals combined according to regular laws of composition.
Compound engine (Mech.), a form of steam engine in which the steam that has been used in a high-pressure cylinder is made to do further service in a larger low-pressure cylinder, sometimes in several larger cylinders, successively.
Compound ether. (Chem.) See under Ether.
Compound flower (Bot.), a flower head resembling a single flower, but really composed of several florets inclosed in a common calyxlike involucre, as the sunflower or dandelion.
Compound fraction. (Math.) See Fraction.
Compound fracture. See Fracture.
Compound householder, a householder who compounds or arranges with his landlord that his rates shall be included in his rents. [Eng.]
Compound interest. See Interest.
Compound larceny. (Law) See Larceny.
Compound leaf (Bot.), a leaf having two or more separate blades or leaflets on a common leafstalk.
Compound microscope. See Microscope.
Compound motion. See Motion.
Compound number (Math.), one constructed according to a varying scale of denomination; as, 3 cwt., 1 qr., 5 l
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; -- called also denominate number.
Compound pier (Arch.), a clustered column.
Compound quantity (Alg.), a quantity composed of two or more simple quantities or terms, connected by the sign + (plus) or - (minus). Thus, a + b - c, and bb - b, are compound quantities.
Compound radical. (Chem.) See Radical.
Compound ratio (Math.), the product of two or more ratios; thus ab:cd is a ratio compounded of the simple ratios a:c and b:d.
Compound rest (Mech.), the tool carriage of an engine lathe.
Compound screw (Mech.), a screw having on the same axis two or more screws with different pitch (a differential screw), or running in different directions (a right and left screw).
Compound time (Mus.), that in which two or more simple measures are combined in one; as, 6-8 time is the joining of two measures of 3-8 time.
Compound word, a word composed of two or more words; specifically, two or more words joined together by a hyphen.
Douglas Harper's Etymology Dictionary
c.1400, "withdrawal, removal," from Late Latin subtractionem (nominative subtractio) "a drawing back, taking away," from past participle stem of Latin subtrahere "take away, draw off, draw from below," from sub "from under" (see sub-) + trahere "to pull, draw" (see tract (n.1)). The mathematical sense is attested from early 15c.\nÞou most know þat subtraccion is drawynge of one nowmber oute of anoþer nomber.
["The Crafte of Nombrynge," c.1425]
Wiktionary
n. 1 (context arithmetic English) (''uncountable'') The process of subtracting a number from another. 2 (context arithmetic English) (''countable'') A calculation involving subtracting. 3 The removal of something.
WordNet
n. an arithmetic operation in which the difference between two numbers is calculated; "the subtraction of three from four leaves one"; "four minus three equals one" [syn: minus]
the act of subtracting (removing a part from the whole); "he complained about the subtraction of money from their paychecks" [syn: deduction] [ant: addition]
Wikipedia
Subtraction is a mathematical operation that represents the operation of removing objects from a collection. It is signified by the minus sign (−). For example, in the picture on the right, there are 5 − 2 apples—meaning 5 apples with 2 taken away, which is a total of 3 apples. Therefore, 5 − 2 = 3. Besides counting fruits, subtraction can also represent combining other physical and abstract quantities using different kinds of objects including negative numbers, fractions, irrational numbers, vectors, decimals, functions, and matrices.
Subtraction follows several important patterns. It is anticommutative, meaning that changing the order changes the sign of the answer. It is not associative, meaning that when one subtracts more than two numbers, the order in which subtraction is performed matters. Subtraction of 0 does not change a number. Subtraction also obeys predictable rules concerning related operations such as addition and multiplication. All of these rules can be proven, starting with the subtraction of integers and generalizing up through the real numbers and beyond. General binary operations that continue these patterns are studied in abstract algebra.
Performing subtraction is one of the simplest numerical tasks. Subtraction of very small numbers is accessible to young children. In primary education, students are taught to subtract numbers in the decimal system, starting with single digits and progressively tackling more difficult problems.
Usage examples of "subtraction".
In particular, the brain separates each pitch value into a precise pitch value modulo octaves and an imprecise absolute value, and performs subtraction separately on each of these components.
The teacher was covered with chalkdust and the blackboards were covered with simple additions and subtractions, by multiplicands, multipliers, and products, by dividends, divisors, and quotients.
Southern hex, but they were usually minora matter of humidity, carbon-dioxide content, the addition or subtraction of some trace gas.
Now every absence is a nonevent, a subtraction, an adventure I will hear about when my adventurer materializes at my feet, bleeding or whistling, smiling or shaking.
The teacher was covered with chalkdust and the blackboards were covered with simple additions and subtractions, by multiplicands, multipliers, and products, by dividends, divisors, and quotients.
Long division was taught as a set of rules from a cookbook, with no explanation of how this particular sequence of short divisions, multiplications and subtractions got you the right answer.
But in order to fully understand them, we need first to look carefully at the prerational structures, so we will know, if nothing else than by a process of subtraction, what the transpersonal states are like.
She considered for one instant, and, drawing from her pocket a small ivory box, she wrote, "Tell me why this pomatum has no longer any effect" She formed the pyramid, the columns, and the key, as I had taught her, and as she was ready to get the answer, I told her how to make the additions and subtractions which seem to come from the numbers, but which in reality are only arbitrary.
An hour and a half afterwards I sent her the following letter, which I copied without addition or subtraction: "A quarter of an hour after I had sent off my letter, the village doctor came to tell me that my man had need of his treatment for a disease of a shameful nature which he had contracted quite recently.
There is no language involved, only mathematics, with a progressive series of examples to contextually define the symbols, starting with simple addition and subtraction and ending with a form of vector analysis.
He adjusted the specta cles carefully on his nose, picked up his pen, waved a negligent hand in acquiescence, and returned to his credits and debits, his additions and subtractions.
From the glimpse I caught of the check register, it looked as though it had been a while since she'd done her subtraction.
They went through addition, subtraction, multiplication and division in short order and before he knew it he was into elementary algebra.
It's all very well to maximize your gains and minimize your losses, but there are some things you can't weigh by addition and subtraction - things like freedom, privacy, equality before the law, and what I will have to call, rather vaguely, the unique: a moment of understanding, a work of art, a human life.
But in involution or efflux, if we start with the highest and represent it as A, the next level down is A - B, the next is A B C, and so forth, since each involutionary efflux is a subtraction or a stepping-down from the ground of its predecessor.