DATA PROCESSING

A data processing method and a device. The method comprises: first, receiving a data processing task, the data processing task comprising a non-polynomial function to be processed and data to be processed corresponding to an independent variable of the non-polynomial function (101); and then performing a first linear transformation on the data to be processed, so as to cause an independent variable value corresponding to the data after the first linear transformation to fall within a simulated domain, wherein the simulated domain is an interval selected from the domain of the independent variable of the non-polynomial function (103); then using the data obtained after the first linear transformation to obtain a corresponding simulated polynomial function value, wherein a simulated polynomial is obtained by performing Chebyshev series fitting on the non-polynomial function in the simulated domain (105); and last, performing a second linear transformation on the simulated polynomial function value according to