Comments on: Examples

By: TG Developer » 50+ Free Resources for Charts and Graphs Solution

TG Developer » 50+ Free Resources for Charts and Graphs Solution — Sat, 13 Mar 2010 16:57:28 +0000

[...] Link Live Examples Download [...]

By: 50+ Free Resources for Charts and Graphs Solution « qybaby's Blog Life ……

Fri, 12 Mar 2010 10:20:17 +0000

[...] Link Live Examples Download [...]

By: agentyikes

agentyikes — Tue, 02 Feb 2010 22:13:36 +0000

Thanx a lot!

By: alfred

alfred — Tue, 02 Feb 2010 16:08:24 +0000

I found your (impressive) wiki page.
The problem is a small typo:
brd.createElement(‘text’,[-5.5,17,
function(){ return '`~~` ' +
(brd.riemannsum(f,n.Value(),ftype(),a,b.Value())).toFixed(4); }]);

i.e. ftype() instead of ftype.

By: alfred

alfred — Tue, 02 Feb 2010 15:33:12 +0000

The page
http://jsxgraph.uni-bayreuth.de/wiki/index.php/Riemann_sum_III
contains your example and it works. Maybe, there is some simple typo in your code.

By: agentyikes

agentyikes — Tue, 02 Feb 2010 14:00:19 +0000

Thanks!
I did use a string ‘left’ to test and still get the same answer 72.2160.

By: alfred

alfred — Tue, 02 Feb 2010 13:14:00 +0000

1) Is it possible that you called
type = left;
brd.riemannsum(f,500,type,0,6).toFixed(4)
instead of
type = ‘left’;
brd.riemannsum(f,500,type,0,6).toFixed(4) ?
i.e. type has to contain a string.
2) Good request! The next release will enable the attribute “withLabel:false” for sliders, too.

Thank you very much,
Alfred

By: agentyikes

agentyikes — Tue, 02 Feb 2010 11:41:14 +0000

Thanks very much for your help. The stuffs are so great that I am very much addicted to it.
I have two more questions.
1. When I use brd.riemannsum(f,500,type,0,6).toFixed(4) and f = function(x) { return x*x;} with any type (left, right … etc), the result is 72.2160. The accuracy seems not very good. Any way to improve it?
2. Is there a way to have a slider without the value displayed on its side?
Thanks again for the cool stuff.

By: 20 Fresh JavaScript Data Visualization Libraries | Designers' Digest

Thu, 28 Jan 2010 12:43:31 +0000

[...] JSXGraph Demo [...]

By: alfred

alfred — Thu, 28 Jan 2010 09:31:18 +0000

Maybe, the example
http://jsxgraph.uni-bayreuth.de/wiki/index.php/Circle_approximation
from our wiki is helpful.