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Data processing method and apparatus

A data processing and data technology, applied in the field of data processing, can solve problems such as slow convergence speed, complex process, and difficulty in implementation.

Inactive Publication Date: 2017-02-22
BEIJING BITMAIN TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It will be difficult to directly expand calculations through functions, and a lot of work will be required
That is: for functions involving non-integer numbers, in the process of Taylor expansion, the convergence speed is very slow and the process is complicated

Method used

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  • Data processing method and apparatus
  • Data processing method and apparatus

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Embodiment Construction

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0041] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0043] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

Embodiments of the invention disclose a data processing method and apparatus. The method comprises the steps of receiving input data A as a value of x when a function f(x) is calculated through a Taylor formula; identifying whether A is an integer or not; if A is not the integer, decomposing A into an integer part A1 and a decimal part A2; for the integer part A1, querying a preset function result reference table, obtaining a numerical value of the function f(x) when x equals A1 to serve as a first calculation result, wherein the function result reference table comprises corresponding numerical values of the function f(x) when x is integer values; for the decimal part A2, calculating a numerical value of the function f(x) when x equals A2 through the Taylor formula to serve as a second calculation result; and multiplying the first calculation result by the second calculation result, and taking an obtained product as a calculation result of the function f(x) when x equals A. According to the method and the apparatus provided by the embodiments of the invention, the problem that Taylor expansion cannot be converged or is slowly converged when a non integer is involved in a Taylor expansion function can be solved.

Description

technical field [0001] The invention relates to data processing technology, in particular to a data processing method and device. Background technique [0002] During data processing, it is often necessary to calculate various functions. For a function, the value of a function's higher-order derivative at x can be used to approximate the function itself in a neighborhood of x, and the speed of this approximation can be described by Taylor's formula. Therefore, Taylor expansion can be used to calculate complex functions. That is, when it is difficult to calculate the function directly, Taylor's formula can be used to expand, and the polynomial function can be used to approximate the complex function, and the calculation of the polynomial can replace the calculation of the complex function. The Taylor formula is a formula that uses the information of a function at a certain point to describe its nearby values. If the function is smooth enough, when the derivative values ​​o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/17
CPCG06F17/17
Inventor 杨存永
Owner BEIJING BITMAIN TECH LTD