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-
- _S_o_l_v_e _a_n _U_p_p_e_r _T_r_i_a_n_g_u_l_a_r _S_y_s_t_e_m
-
- backsolve(r, x, k=ncol(r))
-
- _A_r_g_u_m_e_n_t_s:
-
- r : an upper triangular matrix giving the coeffi-
- cients for the system to be solved. Values
- below the diagonal are ignored.
-
- x : a matrix whose columns give ``right-hand
- sides'' for the equations.
-
- k : The number or columns of r and rows of x to
- use.
-
- _V_a_l_u_e:
-
- The solution of the triangular system. The result will
- be a a vector if x is a vector and a matrix if x is a
- matrix.
-
- _R_e_f_e_r_e_n_c_e_s:
-
- Dongarra, J. J., J. R. Bunch, C. B. Moler and G. W.
- Stewart (1978). LINPACK Users Guide. Philadelphia:
- SIAM Publications.
-
- _S_e_e _A_l_s_o:
-
- chol, qr, solve.
-
- _E_x_a_m_p_l_e_s:
-
- # no examples yet
-
-