Score for a hole = strokes × (matrices + 1): every shot counts, and each matrix makes every shot count more. A hint costs 1 stroke.
Golfer facing
Turn with a matrix
Turn
Advanced: any angle. Type each entry of your rotation matrix as a decimal to 2 d.p., or use an exact value from ▾. The golfer turns to the nearest degree.
Power
The dark mark shows the power of your last shot.
A rotation of θ anticlockwise about the origin has matrix
For example cos 90° = 0 and sin 90° = 1. For a clockwise turn use a negative angle.
The matrix multiplies the golfer’s facing vector (a column vector) to give the new direction.
A quarter turn is 90° and a half turn is 180°. Clockwise is the way a clock’s hands go. The compass shows which way the golfer faces: north is up.