For example, the name of a point is '-R'.
I typed '-R', but was refused.
It can be realized by the text panel, where you write down characters or strings, and move them to the point, vector, etc. as a name.
Unfortunately, you can't input '-' in the name of any object.
It’s not possible, because “-“ is a mathematical operator.
Please see https://wiki.geogebra.org/e...
You can use an object's Caption to enter other symbols like <Minus> and <Space>
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