; Constant folding and propagation: replacing expressions consisting of constants ( e. g., ) with their final value () at compile time, rather than doing the calculation in run-time.

Constant folding is the process of simplifying constant expressions at compile time.

Constant folding can be done in a compiler's front end on the IR tree that represents the high-level source language, before it is translated into three-address code, or in the back end, as an adjunct to constant propagation.

Constant folding and propagation are typically used together to achieve many simplifications and reductions, by interleaving them iteratively until no more changes occur.

# REDIRECT Constant folding

The slope field of F ( x ) = ( x < sup > 3 </ sup >/ 3 )-( x < sup > 2 </ sup >/ 2 )- x + c, showing three of the infinitely many solutions that can be produced by varying the Constant of integration | arbitrary constant C.

* Constant surface speed, a mode of machine tool operation in which angular velocity ( rpm ) is varied in order to achieve a constant tangential velocity at the tool-material interface — one of the many aspects of speeds and feeds

Euler is the only mathematician to have two numbers named after him: the immensely important Euler's Number in calculus, e, approximately equal to 2. 71828, and the Euler-Mascheroni Constant γ ( gamma ) sometimes referred to as just " Euler's constant ", approximately equal to 0. 57721.

Constant flow scuba sets do not have a demand regulator ; the breathing gas flows at a constant rate, unless the diver switches it on and off by hand.

Constant values of this argument correspond to constant values of F, and these constant values occur if x increases at the same rate that vt increases.

* Constant rule: If c is a constant, then

Constant flux calorimetry ( or COFLUX as it is often termed ) is derived from heat balance calorimetry and uses specialized control mechanisms to maintain a constant heat flow ( or flux ) across the vessel wall.

Constant current power supplies are most often used for manual welding processes such as gas tungsten arc welding and shielded metal arc welding, because they maintain a relatively constant current even as the voltage varies.

Constant voltage power supplies hold the voltage constant and vary the current, and as a result, are most often used for automated welding processes such as gas metal arc welding, flux cored arc welding, and submerged arc welding.

Constant re-divisions of territories by Clovis's descendants resulted in many rivalries that, for more than two hundred years, kept Neustria in almost constant warfare with Austrasia, the eastern portion of the Frankish kingdom.

Financial capital maintenance in units of constant purchasing power, i. e., Constant Item Purchasing Power Accounting – CIPPA – in terms of a Daily Consumer Price Index or daily rate at all levels of inflation and deflation ( see the original Framework ( 1989 ), Par 104 ( a )) Conceptual Framework ( 2010 ), Par.

Stable measuring unit assumption: financial capital maintenance in nominal monetary units or traditional Historical cost accounting only under the traditional Historical Cost paradigm ; i. e., accountants consider changes in the purchasing power of the functional currency up to but excluding 26 % per annum for three years in a row ( which would be 100 % cumulative inflation over three years or hyperinflation as defined in IAS 29 ) as immaterial or not sufficiently important for them to choose Capital Maintenance in units of constant purchasing power in terms of a Daily Consumer Price Index or daily rate Constant Item Purchasing Power Accounting at all levels of inflation and deflation as authorized in IFRS in the original Framework ( 1989 ), Par 104 ( a ) Conceptual Framework ( 2010 ), Par.

Units of constant purchasing power: capital maintenance in units of constant purchasing power at all levels of inflation and deflation in terms of a Daily Consumer Price Index or daily rate ( Constant Item Purchasing Power Accounting ) only under the Capital Maintenance in Units of Constant Purchasing Power paradigm ; i. e. the total rejection of the stable measuring unit assumption at all levels of inflation and deflation.

Capital maintenance in units of constant purchasing power under Constant Item Purchasing Power Accounting in terms of a Daily Consumer Price Index or daily rate of all constant real value non-monetary items in all entities that at least break even in real value at all levels of inflation and deflation-ceteris paribus-remedies for an indefinite period of time the erosion caused by Historical Cost Accounting of the real values of constant real value non-monetary items never maintained constant as a result of the implementation of the stable measuring unit assumption at all levels of inflation and deflation under HCA.

Constant real value non-monetary items are non-monetary items with constant real values over time whose values within an entity are not generally determined in a market on a daily basis.

All constant real value non-monetary items are always and everywhere measured in units of constant purchasing power at all levels of inflation and deflation under CIPPA in terms of a Daily CPI or daily rate under the Capital Maintenance in Units of Constant Purchasing Power paradigm.

: Revenues and expenses are measured in nominal monetary units under the Historical Cost Accounting model and in units of constant purchasing power ( inflation-adjusted ) under the Units of Constant Purchasing Power model.

Constant propagation is the process of substituting the values of known constants in expressions at compile time.

Constant propagation is implemented in compilers using reaching definition analysis results.

Constant propagation can also cause conditional branches to simplify to one or more unconditional statements, when the conditional expression can be evaluated to true or false at compile time to determine the only possible outcome.

It had been pointed out previously by J. J. Thomson in his series of lectures at Yale University in May 1903 that the dynamic equilibrium between the velocity generated by a concentration gradient given by Fick's law and the velocity due to the variation of the partial pressure caused when ions are set in motion " gives us a method of determining Avogadro's Constant which is independent of any hypothesis as to the shape or size of molecules, or of the way in which they act upon each other ".

* Constant populations: Some Occitan-speaking peoples are descended from people living in the region since prehistory ( Bec, 1963 ).

Constant false alarm rate and digital terrain model processing are also used in clutter environments.

Recent English-language spy films are The Bourne Identity ( 2002 ), Mission: Impossible ( 1996 ); Munich ( 2005 ), Syriana ( 2005 ), The Constant Gardener ( 2005 ) and Casino Royale ( 2006 ), a relaunching of the James Bond series.

Constant binary 1 and 0 levels are shown, as well as transitions from 0 to 1, 1 to 0, 0 to 1 to 0, and 1 to 0 to 1.

Inside the church are the tombs of Luther and Philipp Melanchthon, and of the electors Frederick the Wise ( by Peter Vischer the Younger, 1527 ) and John the Constant ( by Hans Vischer ), and portraits of the reformers by Lucas Cranach the Younger.

Nairn's claims are confirmed in part by revelations of Emmanuel Constant regarding the ties of his FRAPH organization to the CIA before and during the coup government.

Historic and current period monetary items are required to be inflation-adjusted on a daily basis in terms of a daily index or rate under the Capital Maintenance in Units of Constant Purchasing Power paradigm.

Current period variable real value non-monetary items are required to be measured on a daily basis in terms of IFRS excluding the stable measuring unit assumption and the cost model in the valuation of property, plant, equipment and investment property after recognition under the Capital Maintenance in Units of Constant Purchasing Power paradigm.

Under the Units of Constant Purchasing Power model, all constant real value non-monetary items are inflation-adjusted during low inflation and deflation ; i. e. all items in the Statement of Comprehensive Income, all items in shareholders ´ equity, Accounts Receivables, Accounts Payables, all non-monetary payables, all non-monetary receivables, provisions, etc.

The following are listed on the National Register of Historic Places: Constant Riley W. Bixby House, Amzi Bradley Farmstead, District # 10 Schoolhouse, Harrington Cobblestone Farmhouse and Barn Complex, and Philo Newton Cobblestone House.

* Constant weight fluctuations are common

Two previously unreleased songs, " Situations " and " Constant Static ," are also featured on the album.

Constant rain and other weather influences are slowly dissolving the entire range.

Constant and repeated movement creates a risk of repetitive stress injury ; pain must often be worked through to hold a job in a market with constant turnover ; and the days are filled with degrading and uninteresting tasks ( e. g. toilet-cleaning and mopping ).

The only named Vogons in the stories are Jeltz ( see below ), Kwaltz ( who appears in the film ), Zarniwoop, revealed to be a Vogon in the Quintessential Phase, and Jeltz's son Constant Mown.

The polo-cities are: Benjamin Constant, Tefé, Lábrea, Eirunepe, Manicoré, Barcelos, Manacapuru, Itacoatiara and Parintins.