point2line
index		  
Name rotate ( )
Description Rotates the vector clockwise by a delta angle (turning left from the vectors forward direction).
Syntax 
rotate(deltaAngle);
Parameters
deltaAngle   in radians (float)
Returns None
Usage Web & Application
Related rotated ( )
setRotation ( )
Examples 
import point2line.*;

Vect2 velocity = new Vect2( 0, 1 );

println( degrees( velocity.angle() ) );  // prints "90.0"

velocity.rotate( radians( 90 ) );

println( degrees( velocity.angle() ) );  // prints "180.0"