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# Choice of Approximation Function Based on the Structural Data of 8 % Co–92 % Wc Alloy. Pp. 77–83.

Section: Physics. Mathematics. Informatics

538.911

### Authors

Astapova Elena Stepanovna, Amur State University (Blagoveshchensk, Russia)

Borilko Anton Sergeevich, Postgraduate Student, Amur State University (Blagoveshchensk, Russia)

Astapov Ivan Aleksandrovich, Institute for Material Studies, Far Eastern Branch of the Russian Academy of Sciences (Khabarovsk, Russia)

### Abstract

The paper is devoted to the choice of approximation function to calculate the coherent-scattering region, exemplified by the hard alloy with 8 % Co–92 % WC. The constants of approximation functions Cauchy 1, Cauchy 2, Laue and Gaussian function were fitted by means of numerical methods. Function availability estimation was gained with the mean-square residual.

### Keywords

Gaussian function, Cauchy function, Laue function, approximation, mean-square residual, block, thin crystal structure.

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### References

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