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Rotation around the origin through an angle :
(r,)
(r,
+
).
Reflection in a line through the origin and making an angle
with the positive x-axis:
(r,)
(r, 2
-
).
Silvio Levy
Wed Oct 4 16:41:25 PDT 1995
This document is excerpted from the 30th Edition of the CRC Standard Mathematical Tables and Formulas (CRC Press). Unauthorized duplication is forbidden.