Expression 1-x or X-1

Grasshopper
1

In the expression object I am not able to write 1-x… i got tips: Remove show full names in Display… Well. Did not work. This is the originalfile from my teacher and mine. exactly the same. Even my teacher tried it on my pc…

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2

If you have not connected anything to the x input you’ll get that error. Just plug a component that provides numbers and it should start working magically.

kuva
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kuva
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If you still get error messages you may want to post a screenshot of your component with the expression editor closed.