This paper proposes a channel-independent inverse characterization process based on the GOG model for a display device. The CIEXYZ values for each of RGB channel can estimated from nine channel-independent interpolation TRCs (Tone Response Curves), and the result of this characterization method is better than that from conventional three channel-independent interpolation TRCs. However inverse c...

In this paper, we use an empirical equation and cubic spline interpolation to fit Covid-19 data available for accumulated infections deaths in Iraq. For Scientific visualization of interpretation, it is useful methods purposes fitting by interpolation. The used from 3 January 2020 21 2021 order obtain graphs analysing the rate increasing pandemic then predicted values that period time. Stochast...

Rainfall is one of the most important climatic variables in the hydrology cycle. In flood estimation as well as environmental pollution studies in medium to large watersheds not only mus temporal pattern of rainfall t be known, but also the knowledge of its spatial distribution is required. Estimation of daily rainfall distribution without comparison and selection of suitable methods may lead...

Many environmental and agricultural problems are not restricted to national boundaries and therefore require international cooperation if solutions are to be found. Often, these solutions require the ability to use soil data as input in simulation models, however, despite a number of recognised international standards, soil data are rarely compatible across national frontiers. This Ž . problem ...

prolate spheroidal wave functions (PSWFs) provide a natural and efficient tool for computing with bandlimited functions defined on an interval. Recently, PSWFs have been becoming increasingly popular in various areas in which such functions occur this includes physics (e.g. wave phenomena, fluid dynamics), engineering (signal processing, filter design), etc. To use PSWFs as a computational tool...

We describe an asynchronous sampling-rate conversion (SRC) algorithm that is specifically tailored to multichannel audio applications. The algorithm is capable of converting between arbitrary asynchronous sampling-rates around a fixed operating point, and is designed to operate in multi-threaded systems. The algorithm uses a set of fractional delay filters together with cubic interpolation to a...

This short note describes the modiied method of incomplete characteristics (MMOIC), a variant of the modiied method of characteristics (MMOC), which utilizes average uid velocities and requires no interpolation. So the computed solution can be more accurate. Numerical results will be added soon.

In this paper, we developed a new three-step method for numerical solution of third order ordinary differential equations. Interpolation and collocation methods were used by choosing interpolation points at steps using power series, while step points, combination powers series perturbation terms gotten from the Legendre polynomials, giving rise to polynomial degree All analysis on derived shows...

Abstract This work presents a novel matrix-based method for constructing an approximation Hessian using only function evaluations. The requires less computational power than interpolation-based methods and is easy to implement in programming languages such as MATLAB. As evaluations are required, the suitable use derivative-free algorithms. For reasonably structured sample sets, proven create or...

abstract understanding distribution of physical and chemical soil parameters is very important in recognizing, planning, and soil and water resources management in precision agriculture. regard to the problems related to direct measurement, finding solution to estimate these parameters are very essential. the purpose of this study was to evaluate the spatial variation of some soil parameters su...