main/src/georegression/geometry/GeometryMath_F64.java
public static void cross( double a_x, double a_y , double a_z ,
							  double b_x, double b_y , double b_z,
							  GeoTuple3D_F64 c ) {
		c.x = a_y * b_z - a_z * b_y;
		c.y = a_z * b_x - a_x * b_z;
		c.z = a_x * b_y - a_y * b_x;
	}
public static void cross( double a_x, double a_y , double a_z ,
							  double b_x, double b_y , double b_z,
							  GeoTuple3D_F64 c ) {
		c.x = a_y * b_z - a_z * b_y;
		c.y = a_z * b_x - a_x * b_z;
		c.z = a_x * b_y - a_y * b_x;
	}
<p>
Computes the cross product:<br>
<br>
c = a x b
</p>

@param a_x x-coordinate of a
@param a_y y-coordinate of a
@param a_z z-coordinate of a
@param b_x x-coordinate of b
@param b_y y-coordinate of b
@param b_z z-coordinate of b
@param c Modified.