It is the binary function: f(x, y) = (y, -x)
3 quarters clockwise is 270 degrees clockwise or 90 degrees anti(counter)-clocwise
270
A rotation of 270 degrees clockwise is equivalent to a rotation of 90 degrees counterclockwise. In a Cartesian coordinate system, this means that a point originally at (x, y) will move to (y, -x) after the rotation. Essentially, it shifts the point three-quarters of the way around the origin in the clockwise direction.
AB --clockwise-------------\ B C ----------------------------/ AC AB --counter-clockwise--\ CA C ----------------------------/ B
'Difference' is a mathmetical expression for subtraction. 7 #Hence 270 - 108 = 162 (The difference).
270 rule represent a 270 rotation to the left which is very easy
3 quarters clockwise is 270 degrees clockwise or 90 degrees anti(counter)-clocwise
Minus 270 degrees which is equivalent to a quarter anti-clockwise turn, or +90 degrees.
Move it 3 times* * * * *or once in the anti-clockwise direction.
90 + 360*k degrees anti-clockwise for any integer k.
270
Both will end up on the same place. Using a compass rose as an example: 270 clockwise will point to the west. 90 counterclockwise will also point west.
Rotation of 270 degrees clockwise or 90 degrees counter clockwise
AB --clockwise-------------\ B C ----------------------------/ AC AB --counter-clockwise--\ CA C ----------------------------/ B
It is 270 degrees clockwise from north.
There are 270 degrees between north and west
You dont, its just 90 degrees 3 times..