Multivariate approximation in Hilbert spaces is a rapidly evolving field that addresses the challenges of approximating functions of several variables in settings where the underlying function spaces ...

This is a preview. Log in through your library . Abstract A Remes-type algorithm based on linear programming is presented for computing linear best Chebyshev approximations to multivariate functions.

The circumference of a sphere is measured to be 24 cm, with a possible error of 0.25 cm. Use the differential \(dV\) to estimate the maximum error in the calculated ...

This paper presents a saddlepoint approximation to the cumulative distribution function of a random vector. The proposed approximation has accuracy comparable to that of existing expansions valid in ...

The area \(A\) of a square of side length \(s\) is \(A=s^2\text{.}\) Suppose \(s\) increases by an amount \(\Delta s=ds\text{.}\) Draw a square and then illustrate ...