What does cubic function mean?
Definitions for cubic function
cu·bic func·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word cubic function.
Wiktionary
cubic functionnoun
Any function of a polynomial whose greatest exponent is 3.
Wikipedia
Cubic function
In mathematics, a cubic function is a function of the form f ( x ) = a x 3 + b x 2 + c x + d {\displaystyle f(x)=ax^{3}+bx^{2}+cx+d} where the coefficients a, b, c, and d are real numbers, and the variable x takes real values, and a ≠ 0. In other words, it is both a polynomial function of degree three, and a real function. In particular, the domain and the codomain are the set of the real numbers. Setting f(x) = 0 produces a cubic equation of the form a x 3 + b x 2 + c x + d = 0 , {\displaystyle ax^{3}+bx^{2}+cx+d=0,} whose solutions are called roots of the function. A cubic function has either one or three real roots (the existence of at least one real root is true for all odd-degree polynomial functions). The graph of a cubic function always has a single inflection point. It may have two critical points, a local minimum and a local maximum. Otherwise, a cubic function is monotonic. The graph of a cubic function is symmetric with respect to its inflection point; that is, it is invariant under a rotation of a half turn around this point. Up to an affine transformation, there are only three possible graphs for cubic functions. Cubic functions are fundamental for cubic interpolation.
Wikidata
Cubic function
In mathematics, a cubic function is a function of the form where a is nonzero; or in other words, a function defined by a polynomial of degree three. The derivative of a cubic function is a quadratic function. The integral of a cubic function is a quartic function. Setting ƒ(x) = 0 produces a cubic equation of the form: Usually, the coefficients a, b,c, d are real numbers. However, most of the theory is also valid if they belong to any field of characteristic other than 2 or 3. To solve a cubic equation is to find the roots of a cubic function. There are various ways to solve a cubic equation. The roots of a cubic, like those of a quadratic or quartic function but no higher degree function, can always be found algebraically. The roots can also be found trigonometrically. Alternatively, one can find a numerical approximation of the roots in the field of the real or complex numbers. This may be obtained by any root-finding algorithm, like Newton's method. Solving cubic equations is a necessary part of solving the general quartic equation, since solving the latter requires solving its resolvent cubic equation.
Numerology
Chaldean Numerology
The numerical value of cubic function in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of cubic function in Pythagorean Numerology is: 5
Translations for cubic function
From our Multilingual Translation Dictionary
- fungsi kubikIndonesian
- funzione cubicaItalian
- கன செயல்பாடுTamil
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"cubic function." Definitions.net. STANDS4 LLC, 2024. Web. 30 Apr. 2024. <https://www.definitions.net/definition/cubic+function>.
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