Binomial approximation

Binomial approximation

The binomial approximation is useful for approximately calculating powers of numbers close to 1. It states that if x is a real number close to 0 and alpha is a real number, then

: (1 + x)^alpha approx 1 + alpha x.

This approximation can be obtained by using the binomial theorem and ignoring the terms beyond the first two.

The left-hand side of this relation is always greater than or equal to the right-hand side for x>-1 and alpha a non-negative integer, by Bernoulli's inequality.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Binomial probability — typically deals with the probability of several successive decisions, each of which has two possible outcomes. Definition The probability of an event can be expressed as a binomial probability if its outcomes can be broken down into two… …   Wikipedia

  • Binomial theorem — The binomial coefficients appear as the entries of Pascal s triangle. In elementary algebra, the binomial theorem describes the algebraic expansion of powers of a binomial. According to the theorem, it is possible to expand the power… …   Wikipedia

  • Approximation De Bernstein — L approximation de Bernstein est une méthode d approximation polynomiale permettant d approcher uniformément une fonction continue définie sur l intervalle par une famille de polynômes, appelés polynômes de Bernstein. Cela donne une version… …   Wikipédia en Français

  • Approximation de bernstein — L approximation de Bernstein est une méthode d approximation polynomiale permettant d approcher uniformément une fonction continue définie sur l intervalle par une famille de polynômes, appelés polynômes de Bernstein. Cela donne une version… …   Wikipédia en Français

  • Binomial proportion confidence interval — In statistics, a binomial proportion confidence interval is a confidence interval for a proportion in a statistical population. It uses the proportion estimated in a statistical sample and allows for sampling error. There are several formulas for …   Wikipedia

  • Binomial distribution — Probability distribution name =Binomial type =mass pdf cdf Colors match the image above parameters =n geq 0 number of trials (integer) 0leq p leq 1 success probability (real) support =k in {0,dots,n}! pdf ={nchoose k} p^k (1 p)^{n k} ! cdf =I {1… …   Wikipedia

  • Binomial coefficient — The binomial coefficients can be arranged to form Pascal s triangle. In mathematics, binomial coefficients are a family of positive integers that occur as coefficients in the binomial theorem. They are indexed by two nonnegative integers; the… …   Wikipedia

  • Approximation de Bernstein — En analyse, l approximation de Bernstein est une méthode d approximation polynomiale, permettant d approcher uniformément une fonction continue f définie sur l intervalle [0,1] par une suite de combinaisons linéaires des polynômes de Bernstein.… …   Wikipédia en Français

  • Binomial options pricing model — BOPM redirects here; for other uses see BOPM (disambiguation). In finance, the binomial options pricing model (BOPM) provides a generalizable numerical method for the valuation of options. The binomial model was first proposed by Cox, Ross and… …   Wikipedia

  • List of factorial and binomial topics — This is a list of factorial and binomial topics in mathematics, by Wikipedia page. See also binomial (disambiguation).*Alternating factorial *Antichain *Beta function *Binomial coefficient *Binomial distribution *Binomial proportion confidence… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”