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**Kurre****Member**- Registered: 2006-07-18
- Posts: 280

Are there any good programs for drawing geometrical pictures? I mean that has functions for lets say creating circumcircles, marking centroids/circumcentres/medians etc, basically a program that is designed for creating proofs/problems/solutions in euclidean geometry??

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi Kurre;

You need dynamic geometry programs for that.

I've used these. They can draw almost anything and have many other features. Very useful for geometry. See if they suit your needs.

Compass and Ruler (you need the java runtime environment JRE, comes with Windows)

http://mac.softpedia.com/get/Math-Scientific/C-a-R.shtml

The developers site is down right now, a shame because he has a lot of useful screenshots there.

kseg

http://www.mit.edu/~ibaran/kseg.html

They are free.

Slightly better and shareware are:

Cabrii geometry

Geometers Sketchpad

*Last edited by bobbym (2009-05-29 11:58:43)*

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**jimmyR****Member**- Registered: 2009-05-29
- Posts: 143

hi bobbym

cabri geometry is a really cool program, so is

Geometer's SketchPad

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi jimmyR;

Yes it is, but I prefer the freeware.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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**jimmyR****Member**- Registered: 2009-05-29
- Posts: 143

absolutely, freeware should be supported

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**Kurre****Member**- Registered: 2006-07-18
- Posts: 280

Thanks for the tips!

Actually I made this thread to see what kinds of programs that existed, since I got the idea to create such a program myself. I have tried Geometers Sketchpad and Cabri now, and Cabri was really nice but was not exactly the type of program I had in mind, altough I guess I will not be able to make a program close as good. But Il maybe give it a try anyway

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi Kurre;

That would be a great program, if you did.

Geup, Geometry Expert and Cinderella are a couple of more that are really nice.

*Last edited by bobbym (2009-06-04 14:18:02)*

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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