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Calculation device and method of non-linear function

A non-linear function and computing device technology, applied in the computing field, can solve the problems of slow execution speed, high complexity of computing circuit design, low resource utilization, etc., and achieve the effects of improving computing speed, saving circuit area expenses and energy consumption

Inactive Publication Date: 2018-01-16
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

The calculation of nonlinear functions usually includes a series of complex operations such as multiplication, division, exponential and trigonometric functions. The calculation is relatively cumbersome, and usually requires the use of arithmetic logic units and other components to complete the corresponding operations. Correspondingly, the complexity of the design of the operation circuit higher
[0003] The general-purpose arithmetic logic unit used in the prior art, such as the ALU in the CPU, has a series of problems such as low resource utilization, slow execution speed, and large circuit hardware overhead in the calculation of nonlinear functions, which cannot meet many low-power applications. Scenes

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention more clear, the non-linear function calculation device and method provided in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Linear and nonlinear are often used to distinguish the dependence of the function y=f(x) on the independent variable x. A linear function is a linear function. In the coordinate system, the image of a linear function can be expressed as a straight line, which describes the proportional and linear relationship between quantities and quantities, and represents regular and smooth motion in space and time; and Non-linear function, in the coordinate system, its image representation is not a straight line, it describes the relationship between quantities that are not proportional and not in a straight line, and represents non-linear motion and mutation. Although methods such as ...

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Abstract

The invention relates to a calculation device of a non-linear function. The device comprises: a finding unit, which is used for determining, according to the function and a function variable input value, corresponding linear-function parameters; and a calculation unit, which is used for utilizing the input value and the corresponding linear-function parameters to carry out calculation.

Description

technical field [0001] The invention relates to the computing field, in particular to a nonlinear function computing device and method. Background technique [0002] The nonlinear function is a kind of function form, and the calculation of the nonlinear function is involved in many technical fields. The calculation of nonlinear functions usually includes a series of complex operations such as multiplication, division, exponential and trigonometric functions. The calculation is relatively cumbersome, and usually requires the use of arithmetic logic units and other components to complete the corresponding operations. Correspondingly, the complexity of the design of the operation circuit higher. [0003] The general-purpose arithmetic logic unit used in the prior art, such as the ALU in the CPU, has a series of problems such as low resource utilization, slow execution speed, and large circuit hardware overhead in the calculation of nonlinear functions, which cannot meet many l...

Claims

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Application Information

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IPC IPC(8): G06F7/57
Inventor 韩银和许浩博王颖
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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