新人求带，计算一个方程组

xiaoge603

A = {{-2 (1 - a) - a,
   0, -(1 - a) Derivative[1][c][r] -
    a Derivative[1][c][r], (1 - a) (-x - y) +
    a (-x - y)}, {0, -2 (1 - a), -(1 - a) Derivative[1][c][
2 I! m( O4 \7 M5 j     r], -a (-a b + t)}, {-(1 - a) Derivative[1][c][r] -
0 ?  Z( A8 a9 x! X: c    a Derivative[1][c][r], -(1 - a) Derivative[1][c][
9 n8 D% A6 @# R7 z: |     r], (1 - a) (-x (c^\[Prime]\[Prime])[r] -
% s/ N6 X) T/ Y) A/ y0 I       y (c^\[Prime]\[Prime])[r] - (p^\[Prime]\[Prime])[r]) +
) O! G5 @' D7 K. b    a ((-Q - y) (c^\[Prime]\[Prime])[r] -
       n (p^\[Prime]\[Prime])[r]), -a Derivative[1][p][r]}, {A - c -
% y8 j4 p; o8 y1 X# x. r& A) o9 b    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}
3 `! V) B: D8 N3 v4 |LinearSolve[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

数学中国YY主管

程序有错误吧