An Intelligent Selection and Representation Method of Significant Digits of Significant Figure Operation Results

A technology of calculation results and significant figures, applied in the field of physical experiments, can solve problems such as poor applicability and unfavorable handling, and achieve good applicability
CN102622202BActive Publication Date: 2016-07-06ZHEJIANG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV OF TECH
Publication Date
2016-07-06

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Abstract

A method for intelligently selecting and representing effective digits of effective digit calculation results, searching for each character in a numerical calculation formula from left to right, using "+" or "-" as a breakpoint to obtain addition and subtraction items, and "* " or " / " as a breakpoint to obtain the multiplication and division items in each addition and subtraction item, and use "^" as a breakpoint to obtain the power bottom item in each multiplication and division item. Perform trigonometric functions and logarithmic operations first, select the effective digits of the operation results, and replace the original trigonometric or logarithmic expressions with the selected results. Count the effective digits of multiplication and division data and exponentiation data in each addition and subtraction item, and the least number of digits is the effective digits of the result of these data multiplication and division exponentiation operations. Unify the exponential form of scientific notation for each addition and subtraction data, count the error bits of each data, and obtain the error bits of the effective figures. The invention adopts intelligent selection, is effectively applicable to the occasions of processing massive data and random digits, and has good applicability.
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Description

Technical field:

[0001] The invention relates to the field of physical experiments, in particular to a method for selecting and expressing effective digits of effective digit operation results in physical experiments. Background technique:

[0002] The selection of the number of effective digits in the calculation results of physical experiment data is an important link in the processing of physical experiment data. At present, the method of selecting the effective digits of the calculation results of physical experiment data usually adopts the method of manual selection, that is, manual selection, or artificially setting the number of digits of the calculation results in the computer data processing system (embedded in the program or in the system) input on the interface), the computer automatically selects the result of the operation according to the number of digits and the rules of rounding to five spouses (such as the function of selecting the number of significant digi...

Claims

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