constant

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constant

1. a specific quantity that is always invariable
2. 
a. Maths a symbol representing an unspecified number that remains invariable throughout a particular series of operations
b. Physics a theoretical or experimental quantity or property that is considered invariable throughout a particular series of calculations or experiments
3. See logical constant
http://physics.nist.gov/cuu/Constants/index.html

Constant

 

in prosody, a constant element in the rhythmic organization of verse; mainly, a constant stress on a certain syllable. Thus, in the verse of M. Iu. Lermontov’s narrative poem Mtsyri, the constant is the constant word boundary after each eighth syllable (boundary of the verse) and the constant stress on the last, eighth syllable of each segment.

Vse luchshe pered kem-nibúd’
Slovami oblegchit’ mne grúd;
No liudiam ia ne delal zlá,
I potomu moi delá
Ne mnogo pol’zy vain uznát’;
A dushu mozhno l’ rasskazát’? … 

Constant

 

a quality that has the same value throughout a given discussion. The constancy of the quality x can be expressed symbolically as x = const. Constants are often represented by the letters C and K.

constant

[′kän·stənt]
(science and technology)
A value that does not change during a particular process.

constant

In programming, a fixed value in a program. Minimum and maximum amounts, dates, prices, headlines and error messages are examples.
References in classic literature ?
William, the eldest, a year older than herself, her constant companion and friend; her advocate with her mother (of whom he was the darling) in every distress.
Adam's eyes were in constant employment, and it was not till Salton declared that they had now entered on the last stage of their journey, that he referred to Sir Nathaniel's coming.
We walked a little way without speaking, and presently Richard addressed me in his frankest and most feeling manner, thus: "My dear Esther, I understand you, and I wish to heaven I were a more constant sort of fellow.
In other ways she was quite rational, and the joy and happiness she took in the possession of her little son and the constant attentions of her husband made that year a very happy one for her, the happiest of her young life.
Then, my pupils being older, would be more rational, more teachable, and less troublesome than the last; they would be less confined to the schoolroom, and not require that constant labour and incessant watching; and, finally, bright visions mingled with my hopes, with which the care of children and the mere duties of a governess had little or nothing to do.
There may be truly said to be a constant struggle going on between, on the one hand, the tendency to reversion to a less modified state, as well as an innate tendency to further variability of all kinds, and, on the other hand, the power of steady selection to keep the breed true.
The pleasure derived from beholding the scenery and the general aspect of the various countries we have visited, has decidedly been the most constant and highest source of enjoyment.
I was a very constant and attentive visitor to him throughout the whole period of his illness and convalescence; not only from the interest I took in his recovery, and my desire to cheer him up and make the utmost possible amends for my former 'brutality,' but from my growing attachment to himself, and the increasing pleasure I found in his society - partly from his increased cordiality to me, but chiefly on account of his close connection, both in blood and in affection, with my adored Helen.
Tarzan of the Apes, finding that his balu never ceased to give evidence of terror in the presence of the apes of the tribe, and also that most of the adult apes were a constant menace to Go-bu-balu's life, so that Tarzan dared not leave him alone with them, took to hunting with the little black boy farther and farther from the stamping grounds of the anthropoids.
Let this, my young readers, be your constant maxim, that no man can be good enough to enable him to neglect the rules of prudence; nor will Virtue herself look beautiful, unless she be bedecked with the outward ornaments of decency and decorum.
Georgy, on his side, was in the constant habit of hearing coarse abuse and vulgar satire levelled at John Sedley by his pitiless old enemy, Mr.
Some new excitement, too, seemed to prevail among them; for there was much stealthy going in and out, and a constant questioning of those who were newly arrived.