Working method of multiple inequality equations in calculator and calculator

Abstract

The invention relates to a working method of multiple inequality equations in a calculator. A calculation chip in the calculator is used for solving and calculating the multiple inequality equations input by a user to obtain solutions; when the solution is no solution, displaying an image representing no solution on a display screen of the calculator; when the solutions are all real numbers, images representing all real numbers are displayed on a display screen of the calculator; when the solution is a real root, according to the content of the solution, controlling the solution formed by the unknown quantity symbol, the relation symbol and the real root data to be directly displayed on the display screen; when at least two solutions are included, all the solutions of the multiple inequality equations are correlated and completely displayed on the display screen through logic symbols. According to the working method, multiple inequality equation solutions can be visually read. The invention further relates to the calculator, the calculator comprises a body, a calculation chip arranged in the body, keys arranged on the body and a display screen, the calculation chip is in electric signal connection with the keys and the display screen, and the working method is applied to the calculator.

Description

technical field [0001] The invention relates to the technical field of calculators, in particular to a working method for polynomial inequality equations in a calculator, and also relates to a calculator applying the method. Background technique [0002] Calculator is a commonly used calculation tool. Based on different requirements, there are general calculators for common numerical calculations, and scientific calculators for functional calculations. Scientific calculators can perform relatively complex function calculations, such as solving polynomial inequality equations in scientific calculators, and the solution of polynomial inequality equations is more complicated than ordinary equation calculation structures. However, the display of data on existing calculators usually does not meet people's reading habits. For example, for the display of inequality results on calculators, a display method similar to "x>=a, a=1" is usually used. When reading the inequality resul...

AI Technical Summary

Problems solved by technology

Scientific calculators can perform relatively complex function calculations, such as solving polynomial inequality equations in scientific calculators, and the solution of polynomial inequality equations is more complex than ordinary equation calculation structures

However, the display of data on existing calculators usually does not meet people's reading habits. For example, for the display of inequality results on calculators, a display method similar to "x>=a, a=1" is usually used. When reading the inequality result information, the user first needs to understand the meaning of ">=", and also needs to assign the value corresponding to a to x, and then get the result of "x≥1", that is, the process requires the user to The results can only be obtained after some simple calculations

In this way, for the relatively complex results of multinomial inequality equations, it increases the difficulty for users to directly obtain the solutions of multinomial inequality equations, which is not conducive to users' understanding, not conducive to users' intuitive acquisition of calculation results, and may even easily cause confusion in the results. poor experience

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