Graph Display Guidance for Scientific Calculator Axis Range Errors
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Solution Overview
Problem
Conventional graph display methods in scientific calculators often fail to display graphs within the screen due to improper axis settings, leaving users unaware of the reason and how to rectify the issue.
Innovation Solution
The scientific calculator provides a guide screen with options to adjust axis settings or automatically adjust the display range when a graph exceeds the screen limits, informing users why the graph is not displayed and offering methods to rectify it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the graph is displayed with fixed axis ranges, then the display settings are simple, but the graph may not be displayed within the screen when the function formula requires a different range
Solution Approach 1:
The system automatically detects when a graph is not displayed within the screen and provides self-service by presenting coping methods to the user, allowing the system to serve itself in resolving the display issue without requiring external assistance or complex manual debugging
Solution Approach 2:
The system implements feedback by detecting the display status of the graph and providing information back to the user about why the graph is not displayed and what actions can be taken, creating a closed-loop system that responds to display failures
2Device complexity
If no guidance is provided when graph is not displayed, then the system remains simple, but the user cannot know the reason or coping method
Solution Approach 1:
The patent introduces an intermediary information display mechanism that mediates between the system's internal graph rendering status and the user's understanding, providing intermediate information about why the graph is not displayed and what steps can resolve the issue
Data Source
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AI summary
An electronic device (20) includes a processor that, when a graph of a function formula including at least one variable is drawn and displayed on a display unit (12) in response to an input of a numerical value corresponding to a drawing range of the graph to the one variable of the function formula, displays, on the display unit (12), a guide screen (P141) including a plurality of options for displaying the drawn graph within the display unit (12), in response to determining that the whole graph in the drawing range passes outside a display range designated in advance on the display unit (12).