新人求带，计算一个方程组

xiaoge603

A = {{-2 (1 - a) - a,
( X) Z0 T2 L9 k( t. E   0, -(1 - a) Derivative[1][c][r] -
3 F) b4 F) U  @6 m7 X/ E/ ]7 l    a Derivative[1][c][r], (1 - a) (-x - y) +
    a (-x - y)}, {0, -2 (1 - a), -(1 - a) Derivative[1][c][
5 `" q0 q8 G9 ^$ q6 R     r], -a (-a b + t)}, {-(1 - a) Derivative[1][c][r] -
& ]  k2 d# s( v# t- `7 {9 x4 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]) +
1 n* }2 H( V4 W. |( }6 e    a ((-Q - y) (c^\[Prime]\[Prime])[r] -
* U# `3 }$ ]* q0 q6 I4 ^2 s       n (p^\[Prime]\[Prime])[r]), -a Derivative[1][p][r]}, {A - c -
    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}
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

  G" p$ m" Y) {6 Z. C- V; g
) M: O5 `: O: ]% t1 g* j  d$ m6 n

数学中国YY主管

程序有错误吧