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Asked by Taylor
on 30 Nov 2012

I'm trying to create a code that calculates an output in one unit but displays the answer in six different unit (the answer is converted to different units). I have a menu command so that the user can choose from the six different units but I need a switch case as my logical structure. I'm completely lost on how to write the switch case (I'm very, very new to matlab, so forgive my ignorance).

choice = menu('Choose a unit','in','ft','yd','m','cm','mm');

R = input('Input a value for the radius:');

result = (pi*R^2);

switch choice

case 'in' result = pi*R^2;

case 'ft' result = result/12;

case 'yd' result = result/36;

case 'm' result = result * .0254;

case 'cm' result = result * 2.54;

case 'mm' result = result * 25.4;

end

This was my first attempt that failed miserably, so any help would be appreciated.

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Answer by Walter Roberson
on 30 Nov 2012

menu() returns the *number* of the item chosen. So instead of case 'in', use case 1, and instead of case 'ft' use case 2, and so on.

## 1 Comment

## Randy Souza (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/55315#comment_114998

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