Variable List Display for Electronic Device Expression Input
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Solution Overview
Problem
Existing mathematical expression input devices, such as scientific calculators, do not allow users to conveniently confirm the numerical values of variables, requiring repeated processes to retrieve each variable's value individually.
Innovation Solution
An electronic device with a processor and memory that displays a list of variables and their values, enabling users to specify variables and perform calculations, allowing for the display of variable values in a list form and facilitating the input of these values into mathematical expressions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a list of variable meanings is displayed, then users can confirm the meanings of variables, but users cannot confirm the specific numerical values of the variables and must repeatedly select each variable to retrieve its value
Solution Approach 1:
The patent merges the display of variable meanings and variable numerical values into a single integrated list view. Instead of separating variable definition display from value retrieval, the system combines both pieces of information in one display, allowing users to see both the meaning and numerical value of each variable simultaneously without needing to perform separate retrieval operations.
Solution Approach 2:
The patent performs preliminary action by automatically displaying all variable numerical values in the list alongside their meanings before the user needs to use them. Rather than retrieving values on-demand when variables are selected, the system pre-displays all variable values in the variable list, so users can immediately see and reference the numerical values without additional retrieval steps.
2Measurement precision
If users repeatedly select variables to retrieve values, then specific numerical values can be confirmed, but the process becomes time-consuming and inconvenient
Solution Approach 1:
The patent combines the display of variable meanings and variable numerical values into a single integrated list view. Instead of separating variable definition display from value retrieval, the system combines both pieces of information in one display, allowing users to see both the meaning and numerical value of each variable simultaneously without needing to perform separate retrieval operations.
Solution Approach 2:
The patent performs preliminary action by automatically displaying all variable numerical values in the list alongside their meanings before the user needs to use them. Rather than retrieving values on-demand when variables are selected, the system pre-displays all variable values in the variable list, so users can immediately see and reference the numerical values without additional retrieval steps.
Data Source
AI summary
An electronic device includes: a memory; and a processor. The processor causes a display section to display variables and variable values stored in the memory in a list form, causes the display section to display a first variable specified by a user operation as a first part of an expression, causes the display section to display the variables and the variable values after the first variable is displayed, causes the display section to display a second variable specified by a user operation as a second part of the expression, together with the first part, and calculates the expression based on the first part and the second part by referring to a variable value of the first variable and a variable value of the second variable to obtain a calculation result.