GraphSketch.com - free online math grapher
By Murray Bourne, 25 Mar 2009
Here's a great service for math students and teachers.
GraphSketch will plot a range of functions including polynomial, trigonometric and exponential ones.
You can download the resulting plot as a PNG image and use it in your notes.
I like the anti-aliased (smooth) edges of the resulting curves — I find it unsatisfactory that most graphers give you chunky, pixelated ones.
Here's an example (it's f(x) = tan x and g(x) = arctan x plotted on the one set of axes.
This is a well-executed, free application. The link again: GraphSketch.
[Thanks to JackieB for alerting me to GraphSketch.]
See the 6 Comments below.
12 Apr 2009 at 3:34 am [Comment permalink]
now i feel as though I want to learn maths again.
25 Aug 2009 at 2:21 pm [Comment permalink]
Really Great Piece of Software. I'm going back to school!
26 Aug 2009 at 6:40 am [Comment permalink]
This is great. I use graphmatica which I find very useful.
26 Aug 2009 at 8:55 am [Comment permalink]
Thanks, Martha. I remember I tried out Graphmatica some years ago. It's quite versatile and nice that it handles relations (eg circles) as well as functions.
27 Aug 2009 at 1:28 pm [Comment permalink]
I don't know how to thank you. Thanks a lot. It has made my teaching dynamic
27 Aug 2009 at 1:35 pm [Comment permalink]
You're welcome, Ranjan. KIS looks like an interesting school in a lovely location!