# fix

(redirected from fixable)
Also found in: Dictionary, Thesaurus, Medical, Financial, Idioms.
Related to fixable: kind of, clueing

## fix

Nautical, etc the ascertaining of the navigational position, as of a ship, by radar, observation, etc.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

## fix

[fiks]
(biology)
To kill, harden, or preserve a tissue, organ, or organism by immersion in dilute acids, alcohol, or solutions of coagulants.
(computer science)
A piece of coding that is inserted in a computer program to correct an error.
A position of a vessel or craft determined by its master, pilot, or navigator through the use of some or all of the equipments and techniques available.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

## FIX.

On drawings, abbr. for fixture.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

## fix

i. A geographical position determined by visual reference to the surface, by reference to one or more radio navigational aids, by celestial plotting, or by other navigational plotting, including obtaining it by intersecting two or more position lines. In navigation, a relatively accurate position determined without reference to any former position. It can be classified as visual, sonic, celestial, electronic, radio, hyperbolic, LORAN (long-range navigation), radar, etc., depending upon the means of establishing it.
ii. In photography, to render a photographic emulsion permanent by removing the unaffected light-sensitive material.

(networking)

## fix

(3)
1. <mathematics> The fixed point combinator. Called Y in combinatory logic. Fix is a higher-order function which returns a fixed point of its argument (which is a function).

fix :: (a -> a) -> a fix f = f (fix f)

Which satisfies the equation

fix f = x such that f x = x.

Somewhat surprisingly, fix can be defined as the non-recursive lambda abstraction:

fix = \ h . (\ x . h (x x)) (\ x . h (x x))

Since this involves self-application, it has an infinite type. A function defined by

f x1 .. xN = E

can be expressed as

f = fix (\ f . \ x1 ... \ xN . E) = (\ f . \ x1 ... \xN . E) (fix (\ f . \ x1 ... \ xN . E)) = let f = (fix (\ f . \ x1 ... \ xN . E)) in \ x1 ... \xN . E

If f does not occur free in E (i.e. it is not recursive) then this reduces to simply

f = \ x1 ... \ xN . E

In the case where N = 0 and f is free in E, this defines an infinite data object, e.g.

ones = fix (\ ones . 1 : ones) = (\ ones . 1 : ones) (fix (\ ones . 1 : ones)) = 1 : (fix (\ ones . 1 : ones)) = 1 : 1 : ...

Fix f is also sometimes written as mu f where mu is the Greek letter or alternatively, if f = \ x . E, written as mu x . E.

Compare quine.
References in periodicals archive ?
Nothing is off limits when you rework a failing program, or as a sign over my boss's desk once read: "Sacred cows make the best hamburger," Problems must be fixable and fixes must be actionable.
The youth unemployment issues that hang around this region's neck are a major consideration, but a fixable one.
Albaugh said the problem was "very fixable." "We are in the process of fixing the airplanes that are in the (production) flow," he said.
The inordinate length of this otherwise colorful, accessible pic reps a fixable obstacle to crossover success; festival programmers will surely be jamming.
"It's not a cure-all, but it allows two groups with fixable needs to help each other.
The 24-inch main steam line had bottomed out on several pipe hangers and created a dangerous torque load on the boiler feed line resulting in a steam leak that was never really fixable.
Cuban said that if the club came up for sale that, "If they're fixable and the deal is right, then I'm very interested."
But the doctor said it was fixable but you need to be sensible.
In a December Texas Tribune article on school counselors, Castro said there were a number of fixable issues - he called it "the low-hanging fruit" - with the state's approach to the profession.
* Fixable. Haven't done it yet, but if I want to replace damaged tiles, I know I can heat them a bit, peel them up and glue down a new tile.
Mr Leitch said: "I thought if they hit the back of me, I've got least chance of, you know, might break a leg or whatever, that's fixable. But if they hit my son, he's not fixable."

Site: Follow: Share:
Open / Close