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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

# Popular algorithms

- add_transparency [edit] v0.2
*Make an image partially transparent.* - gaussian_curve [edit] v0.1
*Plot the Gaussian function (a bell curve)* - blur_image [edit] v0.1
*Blur an image.* - backwards [edit] v0.5
*Put the words in the supplied text backwards.* - markup_urls [edit] v0.4
*Mark up text by turning URLs and email addresses into links.* - geonames_populations [edit] v0.6
*Use the service provided by geonames.org to get the populations of a list of countries.* - check_domain [edit] v0.1
*Check a domain name against a whitelist and blacklist.* - bubble_sort [edit] v0.2
*Implementation of the "bubble" sorting method. It repeatedly traverses the array to be sorted, swapping adjacent items that are out of order. It stops once the array is traversed with no swaps.* - render_polygons [edit] v0.5
*Helper function to render polygons to the screen with a number of options.* - project_polygon [edit] v0.5
*Project a the points of a 3d polygon onto a flat 2d surface (the screen).* - frame_picture [edit] v0.1
*Put a nice border around a picture. The color of the border will be the average color of the picture.* - invert_color [edit] v0.1
*Invert a color.* - simplify_equation [edit] v0.2
*Simplify an equation.* - ordinal [edit] v0.1
*Turn a number into an ordinal number, for example 2 => 2nd.* - lathe_shape [edit] v0.1
*Draw a lathed shape. The surface of the shape is determined by an equation y=f(x) which is applied for a certain range of x. The line y=f(x) is then rotated about the x axis to generate the shape.* - moon_cycle [edit] v0.1
*Uses the 'Conway Method' to calculate the day of the moon's cycle at a particular date. Day 0 is new moon, day 15 is full moon, day 29 is new moon again. This method is only accurate for the 20th and 21st centuries.* - html_select [edit] v0.1
*Generate an HTML select drop-down menu.* - snowflake_fractal [edit] v0.2
*Draw a Koch snowflake recursively.* - multicolumn [edit] v0.1
*Place a list of values into a two dimensional table.* - validate_email [edit] v0.2
*Validate an email address using a regular expression.*