Created
January 30, 2012 02:45
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| def pitch(angle) | |
| a = angle.degrees_to_radians | |
| @velocity = Matrix[[Math::cos(a), -Math::sin(a)], [Math::sin(a), Math::cos(a)]] * @velocity | |
| end | |
| def pitch_up; pitch 3; end | |
| def pitch_down; pitch -3; end |
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