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  1. Dave's Geometric Pix Gallery - David Joyce; Dept. of Mathematics & Computer Science, Clark University
    Mandelbrot and Julia sets, with a generation form and an Explorer on which you can point and click to get more refined images; Newton Basins and a form to generate them; a page describing tiling the hyperbolic plane; some wallpaper groups; a gallery of roulettes; kaleidoscopes, Bowditch patterns, and other miscellaneous pictures. more>>

  2. Gallery of Pseudospheres - Robert McLachlan
    A short version of an article by Robert McLachlan, "A gallery of constant-negative-curvature surfaces," (Mathematical Intelligencer, Fall 1994, 31-37) about "pseudospherical" surfaces, equally "saddle-shaped" at each point, extensively studied in the nineteenth century and now having a minor revival because of connections with integrable systems. The product of their two curvatures at each point is -1 everywhere, so in a sense they are the opposite (or hyperbolic counterpart) of an ordinary sphere. They can be covered by coordinates known as "Tchebyshev nets." more>>

  3. Graphics Archive - The Geometry Center
    General interest images of an artistic nature, or of general interest to the public, including fractals, digital art, etc.; Special Topics - images created during research projects at the Geometry Center; Video Productions - images from videos produced at the Geometry Center. Search the author index for a specific author or the title index for keywords. more>>

  4. Images and Mathematics (Mathematics Archives) - University of Tennessee, Knoxville (UTK)
    A large collection of images based on or related to mathematical principles, many purely mathematical abstractions, such as fractals; others of natural objects whose shape is explained by equations and mathematical models (for example, a drum vibrating). Animated Drumheads; Chaos Gallery; Fractals; Algorithmic Art; Numerical Analysis Art Gallery; Fluid Dynamics Project; Geometry Through Art; Knots on the Web; Minimal Surfaces; and links to many other sites specializing in math visualization. more>>

  5. matthen - Matthew Henderson
    "Things of interest in maths & science" created by a PhD candidate in Statistical Dialogue Systems who majored in mathematics as an undergraduate. Posts date back to March 2011, and routinely feature Henderson's original animated gifs: "Orbits around three equally sized planets arranged in an equilateral triangle," "Ranunculoid," "Opposite Cities," "Imagine a cat chasing a mouse," "If you released a ball on a merry-go-round....," "The Shepard scale is an audio illusion," "Visual proof which suggests that 1/4 + 1/16 + 1/64Ö = 1/3," "Imagine taking a globe which had just been painted....," "Draw some random points on a piece of paper and join them up....," "When designing a machine, it's better to mesh gears together whose numbers of teeth donít share a common factor," "Two touching identical circles have the same area as the negative space they create in a circumscribing larger circle," "Another interesting property of the logarithmic spiral is revealed if you roll it along a horizontal line," and "What would happen in a crowd evacuation in zero gravity?" and "Is it possible to hear the shape of a drum?" and "How can an ant gauge the area of a potential new nest site to see if it is appropriate for its colony?" and "What image is traced by a line moving according to the digits of π?" See also Henderson's online integrator, differentiator, graph plotter, and formula manipulator. more>>


Mason error

component stack:   /library/branch.html
code stack:   /var/lib/mason/obj/library/branch.html:208

debug info:   Debug file is '/var/lib/mason/debug/anon/1'.


raw error:

error while executing /library/branch.html:
Server message number=1105 severity=17 state=1 line=1 text=Can't allocate space for object 'keystorage' in database 'catalog' because 'default' segment is full/has no free extents. If you ran out of space in syslogs, dump the transaction log. Otherwise, use ALTER DATABASE or sp_extendsegment to increase size of the segment.
Statement=INSERT INTO keystorage ( keys ) VALUES ( '75526;76239;75623;5337;6999;3021;3932;5333;69410;3469;68454;12567;12622;6013;16516;5256;77303;65265;67600;8647;6927;16506;61204;4464;1943;68264;3485;16477;5330;3337;6096;77427;76964;10839;4471;10916;77140;5680...
Server message number=7101 severity=17 state=1 line=1 text=Unable to allocate new text value, dbid 6.
Statement=INSERT INTO keystorage ( keys ) VALUES ( '75526;76239;75623;5337;6999;3021;3932;5333;69410;3469;68454;12567;12622;6013;16516;5256;77303;65265;67600;8647;6927;16506;61204;4464;1943;68264;3485;16477;5330;3337;6096;77427;76964;10839;4471;10916;77140;5680...
HTML::Mason::Interp::__ANON__('Server message number=1105 severity=17 state=1 line=1 text=Can\'...') called at /usr/lib/perl5/site_perl/5.6.0/Forum/Key.pm line 284
Forum::Key::store('is_virtual', undef, 'Forum::Key=HASH(0x90f1a1c)') called at /var/lib/mason/obj/library/branch.html line 208
HTML::Mason::Commands::__ANON__('passed_args', 'HASH(0x9040be4)', 'tree', 'resource_types', 'branch', 'graphics') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Component.pm line 131
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x8f2bb58)', 'passed_args', 'HASH(0x9040be4)', 'tree', 'resource_types', 'branch', 'graphics') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
HTML::Mason::Request::comp('HTML::Mason::Request::ApacheHandler=HASH(0x90f332c)', '/library/branch.html', 'passed_args', 'HASH(0x9040be4)', 'tree', 'resource_types', 'branch', 'graphics') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Commands.pm line 70
HTML::Mason::Commands::mc_comp('/library/branch.html', 'passed_args', 'HASH(0x9040be4)', 'tree', 'resource_types', 'branch', 'graphics') called at /var/lib/mason/obj/library/dhandler line 90
HTML::Mason::Commands::__ANON__('start_at', 1, 'num_to_see', 50, 'keyid', 38708539) called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Component.pm line 131
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x8f1a4e0)', 'start_at', 1, 'num_to_see', 50, 'keyid', 38708539) called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
HTML::Mason::Request::comp('HTML::Mason::Request::ApacheHandler=HASH(0x90f332c)', 'HASH(0x90effc8)', 'HTML::Mason::Component::FileBased=HASH(0x8f1a4e0)', 'start_at', 1, 'num_to_see', 50, 'keyid', ...) called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 159
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 159
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x90f332c)', '/library/resource_types/graphics', 'start_at', 1, 'num_to_see', 50, 'keyid', 38708539) called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 914
HTML::Mason::ApacheHandler::handle_request_1('HTML::Mason::ApacheHandler=HASH(0x8de2afc)', 'Apache=SCALAR(0x90c1be0)', 'HTML::Mason::Request::ApacheHandler=HASH(0x90f332c)', 'HASH(0x910f748)') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 560
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 560
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x8de2afc)', 'Apache=SCALAR(0x90c1be0)') called at /etc/httpd/conf/handler.pl line 97
HTML::Mason::handler('Apache=SCALAR(0x90c1be0)') called at /dev/null line 0
require 0 called at /dev/null line 0