_T_h_e _C_h_o_l_e_s_k_i _D_e_c_o_m_p_o_s_i_t_i_o_n
	
	     chol(x)
	
	_A_r_g_u_m_e_n_t_s:
	
	           x : a symmetric positive-definite matrix.
	
	_V_a_l_u_e:
	
	     This function computes the Choleski factorization of
	     its argument.  It returns the upper triangular factor
	     of the decomposition as its value.
	
	_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:
	
	     backsolve, qr, svd.