more geogebra annoyances

Posted on November 6, 2017


So I make a point like it says to do in the “how to make text” because I want to make text that is attached to a point so it moves when I drag it.

It says “Then, a dialog appears where you may enter your text, which can be static, dynamic, or mixed.”

Now, it doesn’t say where on the extensive dialog space that I’m supposed to do that.   So~   the only possibility on the tab I can see would be “Caption.”

We interrupt this to say oh! Later we figured out that … there are other things, not points, that *do* have a “text” dialogue.   Back to your regularly rambled tirade.

I enter -9 into caption.

I discern that -9 appears, that if I remove “show object,” both caption and dot disappear.   I want to do what the template did — have text without the dot visible.   Even though “Show label” is clicked positive, when I unclick “show object,” it disappears.

So I try to remove the -9.   No.   I can’t.

I have to go back and click on the point and click on “settings” to actually edit it.

No, I still have no idea where to put text.

There’s actually nothing in the dialog box that says where to put text.

Tech documentation is great when it works.

So I go back to the template.

In the template, it’s the text that has a “position” and the starting point can be … a point.

The directions are wrong.

So!   I duplicate the -2 text.

Well, it doesn’t duplicate.  It looks like it does — and I even make sure to “hit enter,” but … whatever!

Okay, it seems it duplicated but dumped it elsewhere on the algebra window.

At least I know about the stupid “we’ll pretend you’re editing and won’t change anything until you go back and click “settings” so that then I could do that extra process (after typing it into the window and then having it not work) … oh, except it still doesn’t work.   So much for that. Well, if I drag a point — not the point I typed in as the one to be its anchor, some other point — then it moves as well as the point I typed in.

Yes, this is so intuitive NOT NOT NOT NOT NOT.

(Note to self:   at least the directions below didn’t include the snarky “easily.”)

With this tool you can create static and dynamic text or LaTeX formulas in the Menu view graphics.svg Graphics View.

At first, you need to specify the location of the text in one of the following ways:

  • Click in the Menu view graphics.svg Graphics View to create a new text at this location.
  • Select a point to create a new text that is attached to this point.
Note: You may specify the position of a text as absolute on screen or relative to the coordinate system on tab Basic of the Menu-options.svgProperties Dialog.

Then, a dialog appears where you may enter your text, which can be static, dynamic, or mixed.

The text you type directly in the Edit field is considered as static, i.e. it’s not affected by the objects modifications. If you need to create a dynamic text, which displays the changing values of an object, select the related object from the Objects drop-down list (GeoGebra Desktop Version) or the tab GeoGebra 48.png in the Advanced menu (GeoGebra Web and Tablet Apps). The corresponding name is shown, enclosed in a grey box, in the Edit field. In the GeoGebra Desktop Version, right-clicking on the grey box allows you to select, if “Definition” or “Value” of the dynamic object is displayed.

It is also possible to perform algebraic operations or apply specific commands to these objects. Just select the grey box and type in the algebraic operation or GeoGebra text command desired. The results of these operations will be dynamically shown in the resulting text, in the Menu view graphics.svg Graphics View.

Best visual results are obtained when using LaTex formatting for the formulas. Its use is simple and intuitive: just check the LaTeX Formula box, and select the desired formula template from the drop-down list. A variety of mathematical symbols and operators is also available in a drop-down-list (GeoGebra Desktop Version) respectively in a tab of the Advanced menu (GeoGebra Web and Tablet Apps Version).

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