How to increase/ decrease a value by using the arrow keys.

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Emily Smith 2016-10-19

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https://ww2.mathworks.cn/matlabcentral/answers/308087-how-to-increase-decrease-a-value-by-using-the-arrow-keys

关闭： Walter Roberson 2016-10-19

I have a numerical variable d=20 that i would like to be able to increase/decrease by ten each time i press the arrow key. So if i press the right arrow key once d=30, and if i press it again it would be d=40, and then if i press the left arrow key once it would be 30 again.