新人求带，计算一个方程组

xiaoge603

A = {{-2 (1 - a) - a,
8 o( N/ A0 z; V/ {: S' A1 d   0, -(1 - a) Derivative[1][c][r] -
    a Derivative[1][c][r], (1 - a) (-x - y) +
1 S+ C0 M7 X4 f. D) g    a (-x - y)}, {0, -2 (1 - a), -(1 - a) Derivative[1][c][
; u4 m6 P1 F1 E5 w; k9 @9 _* C     r], -a (-a b + t)}, {-(1 - a) Derivative[1][c][r] -
- h- o# ~$ o; w% W    a Derivative[1][c][r], -(1 - a) Derivative[1][c][
     r], (1 - a) (-x (c^\[Prime]\[Prime])[r] -
       y (c^\[Prime]\[Prime])[r] - (p^\[Prime]\[Prime])[r]) +
    a ((-Q - y) (c^\[Prime]\[Prime])[r] -
! C! D, j& `: h& |; F7 N% V: W- E, Y* f       n (p^\[Prime]\[Prime])[r]), -a Derivative[1][p][r]}, {A - c -
! g! n4 `( j9 b& @7 u% n+ y) P    n x - n y - n (x + y), A - a b - c - t - n x - n y - n (x + y), 0,
    x (-x - y) + (-x - y) y}}; B = {0, (-1 + a - a n) K, 0, -x K}
* M! k4 K: y) V8 DLinearSolve[A, B]，为何解不出来。。。。。每次都是显示一些递归深度之类的。。。。求解求解
# }9 K. k  Y# r

  Y% Z: n$ N7 F* M( |

数学中国YY主管

程序有错误吧
9 h" X8 n. Z7 e# [5 B' D' t