View Compilation Error

0_0_16004435_31313.cpp:66:5: error: stray '\' in program
     Point3D nV = k1^k2; /\normalVector
     ^
0_0_16004435_31313.cpp: In function 'double cal(Point3D, Vector3D, Point3D, Vector3D)':
0_0_16004435_31313.cpp:66:25: error: expected primary-expression before '/' token
     Point3D nV = k1^k2; /\normalVector
                         ^
0_0_16004435_31313.cpp:66:27: error: 'normalVector' was not declared in this scope
     Point3D nV = k1^k2; /\normalVector
                           ^