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- And points J and K are points along the circumference of the circle where I've drawn tangent lines, that allow me to make arcs UHJ and VIK, which allows me to make pretty arcs that transition from the ends of arc BHI to become tangent to the edges of the cymbal.

I have recently started to use GeoGebra for some code golf challenges involving strings, and have come across a conundrum which I want to ask the meta about, and prompts the more general question of how GeoGebra should be scored in regards to taking in input.

What should be the consensus for taking in string input in GeoGebra? Is direct insertion allowed, or is the input box required (or something else entirely)? How is the problem mentioned above factored in with all of this?

For Geogebra it seems that the only suggested input method available which meets our current guidelines is the input box. (See here.) Both insertion into the code (see here) and assignment to a variable (see here) are disallowed in general. I cannot find any reference to spreadsheet cells as an input method. I had thought it was permitted and I would support a proposal to make it a default. If it is allowed I think it should be allowed for all spreadsheet languages.

If this really bugs you, you can always make your own language which is like geogebra, but smooths over the quirks. From a quick glance it seems that at least some of Geogebra's source code is available here. It can even be a language which compiles into Geogebra.

We suggest you to use the GeoGebra Apps from our global and super-fast server network www.geogebra.org as shown above, but in case you prefer to host and update the GeoGebra apps yourself, you can download our GeoGebra Math Apps BundleThe embed codes are almost the same as above, with two differences: the tag for including deployggb.js needs to be changed to

Now I want to know the coordinates of the point. It is defined as Intersect[l, h] which doesn't help me. I can access its coordinates too (0.8, 3.98) but I want to know how to calculate them depending on the parameters. (I'd expect it to be something like (3a, 7+b-2a)). I know GeoGebra can do this because it must have done it internally to be able to draw the whole image. But I don't know how to access this information.

If you want to get the current position of a Point P you can use the x and y commands. These will update whenever the position of P changes so that you don't have to recalculate where the point should be by hand.

This program is very flexible, and can be used to show simple geometric relationships (like for instance the geometric fact that the sum of the interior angles of a triangle is 180 degrees) to very complex geometric properties (the limit of the sum of rectangles which approximate the area underneath a curve is equal to the exact area under the curve). Geogebra is then therefore useful in a wide variety of different contexts and branches of mathematics.

This academic tool is a rather complicated application that is aimed strictly at those comfortable with difficult math. Speaking of which, the advantage GeoGebra can offer over similar apps is that it provides multiple representations of objects that are all dynamically linked. The idea is to connect geometric, algebraic, and numeric representations in an interactive way.

So this does not seem like a problem with Geogebra itself. The common phenomenon I met in the two problematic laptops is: Adobe Acrobat does not work and has been reinstalled, which probably has something to do with the current issue but I am not very sure.

Currently, if I double click geogebra without admin's privilege, the geogebra.exe and javaw.exe processes appear in sequence in task manager windows for 1 or 2 seconds and then disappear. Only when running as admin, the javaw.exe can be normally started.

Since I didnot backup the system for disk saving consideration and there were tooooo many details for me to recover in the registry, I decided to delete the current user account and create a completely new one, which finally solved my problem.

I am interested in using geogebra, which is a geometry software, as a drawing software. I suppose this would save me a lot of time as a replacement for drawing directly in tikz.

The options I miss most are selection (as in say gimp), and simple copy & paste. ff782bc1db

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