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Latest articles

svgPHPGrapher - a new math plotter

svgPHPGrapher is a new PHP-bassed svg math grapher.
svgPHPGrapher produces clean math graphs with no javascript, and all the processing happens on the server... more »

Sampling to create mathematical function graphs

A curve drawn using svgPHPGrapher
When sketching mathematical functions on paper or computers, it's a good idea to have a sense of what the general shape of the curve is before you start. Sampling can lead to erroneous results... more »

Newton's Method, accuracy and floating point numbers

Newton's Method computer number problems
YouTube engineers faced a problem as the number of views for Gangnam Style approached 2 billion. I found related issues when developing the Newton's Method graph... more »

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