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What are the rules regarding rotations?
asked
May 20, 2019
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What are the rules regarding rotations?
Mathematics
high-school
Tomturton
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The rules
for negative rotation
are as follows: -90 degrees, the
rule
is (x, y) --------> (y, -x) -180 degrees, the
rule
is (x, y) --------> (-x, -y) -270 degrees, the
rule
is (x, y) --------> (-y, x)
Danfeng
answered
May 23, 2019
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Danfeng
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