extprod3d              package:geometry              R Documentation

_C_o_m_p_u_t_e _e_x_t_e_r_n_a_l- _o_r '_c_r_o_s_s'- _p_r_o_d_u_c_t _o_f _3_D _v_e_c_t_o_r_s.

_D_e_s_c_r_i_p_t_i_o_n:

     Computes the external product

      (x2 * y3 - x3 * y2, x3 * y1 - x1 * y3, x1 * y2 - x2 * y1)

     of the 3D vectors in *x* and *y*.

_U_s_a_g_e:

     extprod3d(x, y)

_A_r_g_u_m_e_n_t_s:

       x: 'n'-by-3 matrix. Each row is one *x*-vector 

       y: 'n'-by-3 matrix. Each row is one *y*-vector 

_V_a_l_u_e:

     'n'-by-3 matrix

_A_u_t_h_o_r(_s):

     Raoul Grasman

