The phrase "approximation of the density" is correct and usable in written English.
It can be used in contexts involving statistics, physics, or any field where density is being estimated or approximated.
Example: "The approximation of the density of the material was crucial for the calculations in the experiment."
Alternatives: "estimate of the density" or "density estimation".
The design of the algorithm is based on the assumption that initial low resolution approximation of the density map and reasonable guesses for orientation parameters are available.
Higher order approximation of the density, accounting for its asymptotic behavior near a crack edge, is employed to increase the accuracy of SIF evaluation.
The magnetic map has been investigated through tight-binding linear-muffin-tin scheme within generalized gradient approximation of the density functional.
The electronic structure and binding energy of a number of NiAl-X alloy systems (X=Ti, V, Cr, Mn, Fe, Co, Zr, Nb, Mo, Hf, Ta, W, Si, Ga, or Ge) were calculated using the discrete variational cluster method based on the local density approximation of the density functional theory.
Starting from the convolution formulation of the nonlocal potential, for smooth and fast decaying densities, we make a full use of the Fourier pseudospectral (plane wave) approximation of the density and a separable Gaussian-sum approximation of the kernel in an interval where the singularity (the origin) is excluded.
The hybrid scheme with the MM2 limiter produces some overshooting in the approximation of the density.
The calculated In–O distances are slightly overestimated compared to the experimental values, as expected from the PBE approximation of the density-functional calculations.
During the online phase, the offline knowledge is used to compute approximations of the density distribution function at low cost.
In the present paper we include prior knowledge about some parameters, we derive improved approximations of the density of estimators, and we consider not only linear optimality criteria like generalized A-optimality, but also D- and Ls-optimality criteria with an integer s.
Our main result compared to existing work is to express analytically EXIT functions of the multiuser decoder with two different approximations of the density evolution.
This method measures stationarity degree by the best L2 approximation of the spectral density of the underlying process by the spectral density of a stationary process.
