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2 cards from this section. Quick, good the night before a test.
Define what a global variable is in the context of SciLab GUIs.
Think about where the variable can be accessed from.
What is a persistent variable?
Consider its lifespan compared to global variables.
What is the main benefit of using global variables in SciLab GUIs?
Think about where these variables can be accessed.
Can a persistent variable be accessed globally?
Reflect on how accessibility is defined for these variables.
You have a GUI where a button changes a number displayed on the screen. Implement a feature that ensures that clicking the button cycles through numbers 1 to 10 using a global variable.
Think about how to ensure the variable updates after every click.
Design a GUI with a slider that controls the brightness of a screen. Use a persistent variable to hold the current brightness level.
Focus on making sure the persistence allows for smooth transitions.
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