PangolinTurtle/Turtle-Geometry-Book: My work on turtle geometry

Jason K. MacDuffie 90715814d4 add test files		7 月之前
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animal.scm	5ddf99e99e remove face! which was added to the main turtle library	1 年之前
predator-prey.scm	2664f6d02c include instead of load	1 年之前
test.scm	90715814d4 add test files	7 月之前