Quadratic equations can be solved by factoring, completing the square, graphing, Newton's method, and using the quadratic formula ( given below ).

# REDIRECT Quadratic equation # Quadratic formula

Quadratic polynomials can sometimes be factored into two binomials with simple integer coefficients by use of Vieta's formulas, without the need to use the quadratic formula.

Another estimation tool to calculate GFR is the Mayo Quadratic formula.

: ( 2f ) ( Quadratic formula )

* Quadratic Formula, the equation used to solve quadratic equations

Quadratic equation plot of showing its roots at and, and that the quadratic can be rewritten as

* Quadratic equation

* Quadratic equation

# REDIRECT Quadratic equation

* Quadratic equation # Quadratic factorization

* Quadratic equation, a polynomial equation of degree 2 ( reducible to 0 = ax < sup > 2 </ sup > + bx + c )

* Quadratic equation –

* Quadratic equation

* Quadratic equation

* Quadratic equation

Quadratic equations can also be solved using factorization ( the reverse process of which is expansion, but for two linear terms is sometimes denoted foiling ).

* Lagrange Multipliers for Quadratic Forms With Linear Constraints by Kenneth H. Carpenter

* Quadratic form ( statistics ), scalar quantity ε ' Λε for a n-dimensional square matrix

* Quadratic variation, in stochastics, useful for the analysis of Brownian motion and martingales

* Quadratic probing, a scheme in computer programming for resolving collisions in hash tables.

* 2004 Support for Quadratic Constrained programs

Their operational accuracies may also be reliably estimated from the theory of Minimum-Norm Quadratic Unbiased Estimation ( MINQUE ) of C. R. Rao ( 1920-) and used for controlling the stability of optimal Kalman filtering.

* Babak Hassibi, Ali H. Sayed, and Thomas Kailath, Indefinite Quadratic Estimation and Control: A Unified Approach to H2 and Hoo Theories, Society for Industrial & Applied Mathematics ( SIAM ), PA, 1999, ISBN 978-0-89871-411-1.

Quadratic probing is an open addressing scheme in computer programming for resolving collisions in hash tables -- when an incoming data's hash value indicates it should be stored in an already-occupied slot or bucket.

Quadratic polynomial function of two independent variables x and y.

Church subsequently modified his methods to include use of Herbrand – Gödel recursion and then proved ( 1936 ) that the Entscheidungsproblem is unsolvable: There is no generalized " effective calculation " ( method, algorithm ) that can determine whether or not a formula in either the recursive-or λ-calculus is " valid " ( more precisely: no method to show that a well formed formula has a " normal form ").

This may be expressed recursively as follows, in a form that is used to simplify the calculation of tables of the Erlang B formula:

Extended Erlang B is an iterative calculation, rather than a formula, that adds an extra parameter, the Recall Factor, which defines the recall attempts.

The Engset calculation is a related formula, named after its developer, T. O. Engset, used to determine the probability of congestion occurring within a telephony circuit group.

* A Free Android application for molecular and reciprocal weight calculation of any chemical formula

The formula proposes calculation of ALE ( annualised loss expectancy ) and compares the expected loss value to the security control implementation costs ( cost-benefit analysis ).

The musical note frequency calculation formula is used: F =( 2 ^ 12 / n )* 440, where n equals the amount of positive or negative steps away from the base note of A4 ( 440 hertz ) and F equals the frequency.

In the later editions of his book, de Moivre gives the first statement of the formula for the normal distribution curve, the first method of finding the probability of the occurrence of an error of a given size when that error is expressed in terms of the variability of the distribution as a unit, and the first identification of the probable error calculation.

The calculation is complex and its result cannot be represented in an exact algebraic formula.

The calculation that underlies the Casimir experiment, a calculation based on the formula predicting infinite vacuum energy, shows the zero-point energy of a system consisting of a vacuum between two plates will decrease at a finite rate as the two plates are drawn together.

In computing, a formula typically describes a calculation, such as addition, to be performed on one or more variables.

The mutual inductance by circuit i on circuit j is given by the double integral Neumann formula, see calculation techniques

* Application of Simpson's Rule-Earthwork Excavation ( Note: The formula described in this page is correct but there are errors in the calculation which should give a result of 569m3 and not 623m3 as stated )

This spurred competition between players striving to attain the highest rank, but also controversy over the fairness of the formula used in its calculation.

The benefit of the new formula, a variation on the Gregory / Leibniz series ( Pi / 4 = arctan 1 ), was that it had a significantly increased rate of convergence, which made it a much more practical method of calculation.

In simple situations, this probability can be derived with 1 ) the standard error calculation introduced earlier, 2 ) the formula for the variance of the difference of two random variables, and 3 ) an assumption that if anyone does not choose Kerry they will choose Bush, and vice versa ; they are perfectly negatively correlated.

Their calculation was followed by many similar computations of entropy of large classes of other extremal and near-extremal black holes, and the result always agreed with the Bekenstein-Hawking formula.

The calculation of the NFL ( and CFL ) passer rating involves more steps than the NCAA formula.

* The formula known as Newton's sine-square law of air resistance for the force of a fluid on a body, though not actually formulated by Newton but by others using a method of calculation used by Newton, has been found incorrect and not useful except for high-speed hypersonic flow.

This calculation was based on the following formula: production minus exports plus imports plus or minus changes in stocks ).

The Government ’ s preferred definition of household income includes Housing Benefit and Income Support for Mortgage Interest in the calculation of household resources, although fuel poverty estimates are also published using a formula that excludes housing subsidies.

In modern western astrology the day time formula only was used for many years, but with more knowledge of ancient astrology, the two calculation methods are now often used.