Skip to main content
Log in

The numerical approximation of a class of finite integrals

  • Scientific Notes
  • Published:
BIT Numerical Mathematics Aims and scope Submit manuscript

Abstract

The object of this paper is to derive a method for the numerical approximation of integrals of the form

$$\int_{ - 1}^1 {w(x)f(x)(x^2 + \mathop {a^2 }\limits^ - )^{ - 1} } dx$$

where w(x)=(1−x 2)±1/2 or ((1−x)/(1+x))1/2.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. M. Abramowitz and I. A. Stegun (Editors),Handbook of Mathematical Functions, with Formulas, Graphs and Mathematical Tables, Dover, New York (1966)

    Google Scholar 

  2. C. W. Clenshaw and A. R. Curtis,A method for numerical integration on an automatic computer, Numer. Math, 2(1960), 197–205.

    Google Scholar 

  3. B. Danloy, Numerical construction of Gaussian quadrature formulas for\(\int_0^1 {( - Log x)x^a f(x)dx} \) and\(\int_0^\infty {E_m (x)f(x)dx} \), Math. Comp., 27 (1973), 861–869.

    Google Scholar 

  4. R. Kumar,Certain Gaussian quadratures, Jour. Inst. Math. and Its Appl., 14(1974), 175–182.

    Google Scholar 

  5. F.G. Lether,Subtracting out complex singularities in numerical integration, Math. Comp., 31(1977), 223–229.

    Google Scholar 

  6. H. O'Hara and F. J. Smith,Error estimation in the Clenshaw-Curtis quadrature formula, Comp. Jour., 11(1968), 213–219.

    Google Scholar 

  7. G. Szegö,Orthogonal Polynomials, Amer. Math. Soc. Colloquium Publications, XXIII, 3rd ed. (1967).

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Smith, H.V. The numerical approximation of a class of finite integrals. BIT 24, 253–256 (1984). https://doi.org/10.1007/BF01937492

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01937492

Keywords

Navigation