16.2. Sling
Sling is a programming language for specifying plots of mathematical functions, notably slings. A real sling is a weapon that consists of a strap about a yard long and a stone that attaches to the end of the strap. With some practice and acquired skill, you can whirl a sling over your head, release the stone at the right moment, and strike a target. A famous example of the use of a sling appears in Chapter 17 of the first book of Samuel in the Old Testament. The youthful David steps forward in a battle of champions, and with a skillful shot from his sling he slays the mighty Goliath.
The Sling programming language plots the path of a sling stone as seen from above, as it rotates around the hurler's head. Slings in the Sling programming ...
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