Functions 3D

Widgets » Functions 3D

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by Benjamin Joffe

V1.3 Jun 24, 2006 6:38:18 PM

Render 3D surfaces from mathematical expressions

Enter a mathematical function and have it rendered in a 3D space.

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Equations are entered as a function of x and y. An example for a unit sphere would be:

f(x,y) = (1 - x^2 - y^2) ^ (1/2)

For a full list of the functions, operators, variables and constants available in this widget visit http://my.opera.com/Benjamin%20Joffe/homes/functions/3Dv0.1.html

For a selection of interesting surfaces visit: http://my.opera.com/Benjamin%20Joffe/homes/functions/surfaces.html

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New in 0.21
- Fixed a problem that surfaced since Opera 9.2, (thanks Reggiostar and miron22!)

New in 0.2:
- Height spectrum mode
- Fixed minor panning bug

New in 0.3
- Japanese translation courtesy of Opera Software ASA

See also Functions 2D: http://widgets.opera.com/widget/4226

Comments 63 posts

previous 41 - 60 of 63 next

This is the closest thing to a whirlpool that I can get: sin(50(x^2+y^2)^(1/4))/10-0.5/((x^2+y^2)^0.5)+1

By Benjamin Joffe, # Jul 10, 2006 11:07:24 AM

Nice

Try these: cos(cos(10x)*cos(10y)) and sin(sin(10x)*sin(10y))

please post any good functions - anyone have any idea how to make a whirlpool?

By MaDhAvA, # Jul 10, 2006 9:17:20 AM

Wohooo, that's a really great widget as I can use it for my study - it's much easier than the real mathematical programs if you just want to have an overview of a function.

It would be really great, if you ad some more functions and options, e.g. that you can draw two or more functions together and determine the intersection function.

Further the Natural Logarithm is NOT log(x), it is usually ln(x). The Natural Logarithm is the logarithm with the basis e^1.
It would be nice if you add a Logarithm with the basis 10, usually log(x).

By CatmandOo, # Jul 9, 2006 11:01:27 PM

Congratulations, it's a really good work!

By wisher, # Jul 8, 2006 5:45:24 PM

зачОт .. =)

By desper8, # Jul 4, 2006 4:32:28 PM

WoW!, nice work man!

Excelente!!!

By mackerox, # Jul 2, 2006 9:23:20 PM

I just don't get your praisings. Well, maybe it's cute... But I suppose it's useless, unless you're a kinda mathematician, that hates drawing... ;-)

By yoru_ran, # Jul 2, 2006 1:38:12 PM

Download is not working ???

By steve32653, # Jul 1, 2006 4:12:21 AM

Excellent! This is actually the first useful widget i saw. It's very sophisticated.
I like your other widgets too, they are outstanding (and not only because most of the other widgets lack originality and quality).

Regards,
Wolfgang

By rechenkoenig, # Jun 30, 2006 0:45:15 AM

Awesome work! Thank you! 谢谢！(China)

By cz_ma, # Jun 30, 2006 7:59:43 AM

Класна штука. (Ukraine)

By Sportsman, # Jun 30, 2006 5:22:39 AM

SUPER! THANK YOU!

Класс!

By Dima64, # Jun 29, 2006 10:22:05 AM

awesome work dude!

By NoobSaibot, # Jun 28, 2006 11:19:41 PM

Nicenicenice!!

Can you imagine some kind of auto-scale ? Maybe in a way that the main extreme points, and the main turning points fit into the display area? (if there are any..)

Another idea would be to display color values with iso lines, instead of the 3D height field.

And define variables, and increase the size of the typing field..

I think I need to learn how to create these widgets!!

By Schneemann, # Jun 28, 2006 8:30:07 PM

Very useful! Congrats!

By vinczej, # Jun 27, 2006 2:36:10 PM

It's a Dream!

By konic, # Jun 27, 2006 2:18:45 PM

Brilliant!!!

By yadavankur, # Jun 26, 2006 10:21:03 PM

Nice!

But try to use input with type="number" (WebForms 2) http://www.whatwg.org/specs/web-forms/current-work/#extensions
Also use labels for input fields.

By FataL, # Jun 26, 2006 9:27:24 PM

Really like it!

By miagoff, # Jun 26, 2006 4:58:52 PM

Brilliant... this especially shows the potential of <canvas>. I can imagine an educational website, that teaches children about various functions, with immediate output on their screen.

By MarkSchenk, # Jun 26, 2006 4:04:10 PM