Leading scientists and naturalists, including Professor Richard Dawkins and Sir David Attenborough, are claiming a victory over the creationist movement after the government ratified measures that will bar anti-evolution groups from teaching creationism in science classes. The Department for Education has revised its model funding agreement, allowing the education secretary to withdraw cash from s
Spde is an offshoot of the Processing environment to support sketches written in Scala, a powerfully object-oriented and functional language. In contrast to the PDE, Spde is a deconstructed toolkit. For starters that means you bring your own editor and Spde will compile and run a sketch whenever you save it —- that’s one option. The entire process is controlled by Scala code you can use or overrid
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Relational algebra is a theory for manipulating relations whose power is equivalent to SQL and relational calculus. Remarkably, relational algebra has only six primitive operations. I define the six primitives below, but if you're looking for a comprehensive work on relational theory, particularly as it relates to modern databases, I recommend Date's SQL and Relational Theory: Relations in Unix Ma
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