see text in attachment
ggb 5.0.636
windows 10
Does it work if you make copies, α1=α etc?
This seems to be OK. But the color green suspiciously indicates a list.
Try to select the three angles by pressing ctrl and clicking. Then drag and drop in graphics view
alpha, beta, gamma are special as they're the output of InteriorAngles(). Maybe it's clearer if you use the {InteriorAngles(v1)} syntax
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The same problem 
Does it work if you make copies, α1=α etc?
This seems to be OK. But the color green suspiciously indicates a list.
Try to select the three angles by pressing ctrl and clicking. Then drag and drop in graphics view
alpha, beta, gamma are special as they're the output of InteriorAngles(). Maybe it's clearer if you use the {InteriorAngles(v1)} syntax
Comments have been locked on this page!