numerical integration

(redirected from Integral approximation)

numerical integration

[nü′mer·i·kəl ‚int·ə′grā·shən]
(mathematics)
The process of using a set of approximate values of a function to calculate its integral to comparable accuracy.
References in periodicals archive ?
They are compared to the ones from [2] (collocation method and SDP--steepest descent path technique for solution of the Sommerfeld's integral), and the ones from [4] (FEM method and the Sommerfeld's integral approximation in the form of series of exponential functions).
Mortici, A class of integral approximations for the factorial function, Computers and Mathematics with Applications.