It can be defined as a difference, when measured along different axes, in a material's physical or mechanical properties ( absorbance, refractive index, conductivity, tensile strength, etc.

An array is stored so that the position of each element can be computed from its index tuple by a mathematical formula.

* n ( n-based indexing ): The base index of an array can be freely chosen.

Accessing its elements involves a single subscript which can either represent a row or column index.

However, one can choose the index of the first element by an appropriate choice of the base address B.

If each node additionally records the size of its subtree ( including itself and its descendants ), then the nodes can be retrieved by index in O ( log n ) time as well.

( In particular, the exponential map can be used to define abstract index groups.

This number can be seen as equal to the one of the first definition, independently of any of the formulas below to compute it: if in each of the n factors of the power one temporarily labels the term X with an index i ( running from 1 to n ), then each subset of k indices gives after expansion a contribution X < sup > k </ sup >, and the coefficient of that monomial in the result will be the number of such subsets.

With the 9 main keys, ( operated by the index, middle, and ring fingers ), 2 prefix keys and one delete key, the EkaPad can produce all the inputs of a standard qwerty keyboard with one, two, and a few three finger chords.

These were located front to back inside the trigger guard, the index finger being used to pull either trigger, as having two fingers inside the trigger guard can cause a recoil induced double-discharge.

The simplest form of index is a sorted list of values that can be searched using a binary search with an adjacent reference to the location of the entry, analogous to the index in the back of a book.

The DBMS can help prevent duplicate records via unique index constraints ; for example, no two customers with the same customer numbers ( key fields ) can be entered into the database.

The simplest form of index is a sorted list of values that can be searched using a binary search with an adjacent reference to the location of the entry, analogous to the index in the back of a book.

The dependency can be described by an index ellipsoid.

Frequency modulation can be classified as narrowband if the change in the carrier frequency is about the same as the signal frequency, or as wideband if the change in the carrier frequency is much higher ( modulation index > 1 ) than the signal frequency.

For the case of a carrier modulated by a single sine wave, the resulting frequency spectrum can be calculated using Bessel functions of the first kind, as a function of the sideband number and the modulation index.

Stith Thompson made a major attempt to index the motifs of both folklore and mythology, providing an outline into which new motifs can be placed, and scholars can keep track of all older motifs.

* Light travels at speed c / n when not in a vacuum but travelling through a medium with refractive index = n ( causing refraction ), and in some materials other particles can travel faster than c / n ( but still slower than c ), leading to Cherenkov radiation ( see phase velocity below ).

IGAR models can be used to impute expected changes in growth from current P / E and historical growth rates for the stocks relative to a comparison index.

As a further refinement, each frame can designate one index as a " transparent background color ": any pixel assigned this index takes on the color of the pixel in the same position from the background, which may have been determined by a previous frame of animation.

The markets are far too subtle, and the last word in these endeavors will doubtless never be written, for the enchanting index is about as nebulous as the fountain of youth.

by means of an origin statement which refers to an actual address, the corresponding index word will be reserved.

Extreme caution should be used, however, to avoid the conflicting usage of an index word or electronic switch which may result from the assignment of more than one name or function to the same address.

If the symbolic name or actual address of an index word or electronic switch appears or is included in the operand of an XRELEASE or SRELEASE statement ( see page 101 ), the specified index word or electronic switch will again be made available, regardless of the method by which it was reserved.

It will not, however, be used for symbolic assignment until all other index words or electronic switches have been assigned for the first time.

If, at any time during the assignment pass, the compiler finds that there are no more index words available for assignment, the warning message `` No More Index Words Available '' will be placed in the object program listing, the table will be altered to show that index words 1 through 96 are available, and the assignment will continue as before.

The resultant conflicting usage of index words or electronic switches may be avoided by reducing the number of symbolic names used, e.g., through the proper use of the EQU, XRELEASE, or SRELEASE statements.

DIOCS is used to select the major methods of processing to be used, and to name the index words used by Aj.

This item may be a symbolic name or an actual one-digit or two-digit index word address in the range 3 - 94.

This item may be a symbolic name or an actual one-digit or two-digit index word address in the range 3 - 94.

There will be a comprehensive index in Volume 3, covering all three volumes.

This value may be reduced to 4.6 percent by means of a ( very thin ) glass layer of index 1.5.

For example, an array of 10 integer variables, with indices 0 through 9, may be stored as 10 words at memory addresses 2000, 2004, 2008, … 2036, so that the element with index i has the address 2000 + 4 × i.

Usually programming languages allowing n-based indexing also allow negative index values and other scalar data types like enumerations, or characters may be used as an array index.

The coefficients c < sub > k </ sub > must be chosen so that every valid index tuple maps to the address of a distinct element.

The size of each element, and the minimum and maximum values allowed for each index may also be included in the dope vector.

In such cases, the user may slide the upper scale to the left until its right index aligns with the 2, effectively dividing by 10 ( by subtracting the full length of the C-scale ) and then multiplying by 7, as in the illustration below:

These layers have a lower refractive index than the centre layers, and hence confine the light effectively.

With this, they have effectively locked in a 35 bit / s profit instead of running with a current 40 gain and index risk.

In the simplest scheme, an address, or a numeric index, is assigned to each unit of memory in the system, where the unit is typically either a byte or a word, effectively transforming all of memory into a very large array.

The concept has been extended to include amount of carbohydrate actually absorbed as well, as a tablespoonful of cooked carrots is less significant overall than a large baked potato ( effectively pure starch, which is efficiently absorbed as glucose ), despite differences in glycemic index.

Reducing the range of any index to a single value effectively eliminates that index.

" John Bogle tried to create a way in which an individual investor could effectively invest in an index.

In databases an index is a data structure, part of the database, used by a database system to effectively navigate access to user data.

This kind of antireflective coating works because the bumps are smaller than the wavelength of visible light, so the light sees the surface as having a continuous refractive index gradient between the air and the medium, which decreases reflection by effectively removing the air-lens interface.

Unlike more traditional directories, the files anchored in a segment directory were located using an integer index, effectively reducing searches of the directory to a simple hash function.

* A set is called effectively immune iff is infinite, but there exists a recursive function such that for every index,