-1
votes
3answers
25 views

point on a line and distance from a point [on hold]

I have point(x1,y1) and point(x2,y2) these are end point of line and point(m,n) is a point. How can i find Point(a,b) which lies on the line ,that is the shortest path from point(m,n) to the line
1
vote
2answers
48 views

Does anyone know of any open source software for drawing/calculating the area of intersection of different shapes?

I would like to be able to draw any number of different shapes and determine the area of their intersections. I'm looking for free, open source software. I thought about trying to code something up ...
0
votes
0answers
36 views

Computer-aided study of elementary geometry

As a beginning student of elementary (euclidean plane) geometry, so far, I have gotten the impression that there are two major approaches to geometries: naive vs axiomatic. Being a humanities student ...
0
votes
0answers
38 views

Geogebra - constructing the smallest circle that contains a triangle

I want to create a Geogebra demonstration of the smallest enclosing circle of a given triangle. The Geogebra tutorial shows how to create the circumcircle of a triangle (by calculating the ...
0
votes
1answer
169 views

software to draw geometry 2D, 3D

I am looking for a software to sketch moving figures as the link http://www.mathsisfun.com/geometry/construct-triangleinscribe.html Thanks.
2
votes
1answer
350 views

How to make a parabola in GeoGebra?

I need to make a parabola in GeoGebra. "Smallest" one is going to contain 3 points, while the "biggest" one is going to be defined by 9 points. So if anyone could explain to me how to make a parabola ...
0
votes
1answer
60 views

Equation of a dotted circle

What is happening in this dotted circle? $x^2+y^2 < 2x$ I don't understand how this forms this dotted circle that I get when I type this into geogebra.
2
votes
0answers
120 views

Dynamic Geometry Software for Straight-edge and Compass Constructions

Geogebra is a very good dynamic geometry software. It has so many default tools, e.g. parallel line, angle bisector, tangent to the circle, inscribed and circumscribed circles, etc. But I want the ...
4
votes
4answers
686 views

Find the area of an equilateral triangle given the distances from an interior point to the vertices

Given the distances from an interior point to the vertices of an equilateral triangle, find the area of that triangle. I have already tried equating $\sqrt{3}\times a^2/4$ and sum of the area of ...
2
votes
1answer
43 views

The best softwares to understand the intersections of the 3D objects in the Euclidean space

What is the best software (Easy to follow and clear graphics) to draw the intersections between two spheres, Two spheres and a pyramid, for example. The centre and the radius of the spheres are given ...
52
votes
1answer
2k views

About Euclid's Elements and modern video games

Update (6/19/2014) $\;$ Just wanted to say that this idea that I posted more than a year ago, has now become reality at: http://euclidthegame.com/ 12.292 users have played it in 96 different ...
2
votes
0answers
169 views

Draw curves and planes in latex [closed]

I want to submit a paper and the only thing that's left to do is to add some graphics. My deadline is on Wednesday/Thursday. What I want to do is some basic curve/plane drawings. Here is an image: ...
0
votes
3answers
454 views

How to draw an ellipse with its center and two points on it with with Sketchpad?

How to draw an ellipse with its center and two points on it with Sketchpad?
11
votes
5answers
13k views

A program to draw simple geometry (points, lines, dotted lines etc.)

I am looking for a program to create images of very simple situations, e.g. this. I have already tried Geogebra but I am not quite satisfied with the result. I want my images to look as if they were ...
0
votes
1answer
118 views

Circle : How to get all co-ordinate list of circle parimeter?

I want to find all the co-ordinate of circle. I know the radius of circle and considering center co-ordinate as (0,0). So Is there any equation for finding all ...
14
votes
9answers
4k views

What are some good iPhone/iPod Touch/iPad Apps for mathematicians?

There are lots of good apps for teaching mathematics to children but I would like to learn about apps for undergraduate/graduate/research levels. Helper questions Any algebra system (like ...
4
votes
1answer
217 views

Closed polytope loop

8 cubes can form a torus by gluing them together face-to-face, with each cube sharing a face with each of two other cubes, by torus I just mean a closed loop with a hole. Is the same possible with the ...
1
vote
1answer
310 views

transformation matrices and complex functions as projections

This question is about the connection between linear algebra and complex analysis. Coming from a two real dimensional domain a transformation matrix geometrically transforms a set of points (e.g. a ...
7
votes
2answers
881 views

Penrose Tile generator

Does anyone know if there's a client or web app that generates Penrose patterns which can then be converted to a tileable rectangular background image for web site? I found this ...
17
votes
8answers
7k views

3D software like GeoGebra

Does it exist a free interactive geometry software, like GeoGebra, which works for 3D geometry? I would be able to draw spheres, great circles, and so on.
67
votes
21answers
33k views

Software for drawing geometry diagrams

What software do you use to accurately draw geometry diagrams?