# Vector name with an arrow - cannot enter latex?

Stefan shared this question 3 years ago

Hi, I want to name my vectors with an arrow over the vector name.

Math book says that I can enter \vec{a} and it will show the name with an arrow. It even provides a screenshot but that one is different from my name window and has buttons for bold and latex code.

But I cannot enter that code, it is rejected by geogebra in the name field.

Do you have to turn "show name" off, create a text with this latex code, and manually position it next to the vector to achieve this? The math book isn't really clear on if this is the naming window or a separate text window.

2

for a vector u you can choose the Label option Show Title and type in the field for it $\vec{u}$. The dollar signs enable LaTeX and \vect works fine.

You can't use an arrow in the name itself but this is semantic. The vector is called 'u' and shows up in the Graphics with its name and an arrow sign above.

Names with arrows would be far more difficult to handle (the same as angle names with hats). So just 'u' and the possibility to show LaTeX labels seems the most useful compromise.

chris

1

Thank you very much, this is just what I needed. The math book made no mention of this $code$ so it maybe is an outdated information.

1

Keeping a manual updated, following all evolutions is almost impossible I guess. Concenrning LaTeX labels e.g. this is a feature that has an impact on many types of objects. So when something like this is introduced, it would be useful to add it in all pobject pages concerned, and thereupon in the many manuals in different languages. There's no automatic procedure for this. This makes that indeed it's a problem to spread updated features among users. I already suggested tutorials on advanced features and I hope this wil spread features like this better, since they're very useful.

chris

1

pour moi ce n'était pas impossible, en particulier d'intégrer des paragraphes "Idée" dans les pages appropriées du manuel français .... mais cela, c'était avant .....

https://wiki.geogebra.org/f...