新人求带，计算一个方程组

xiaoge603

A = {{-2 (1 - a) - a,
   0, -(1 - a) Derivative[1][c][r] -
: m7 w* P/ U2 V. K6 q$ Z3 J/ h! G    a Derivative[1][c][r], (1 - a) (-x - y) +
    a (-x - y)}, {0, -2 (1 - a), -(1 - a) Derivative[1][c][
     r], -a (-a b + t)}, {-(1 - a) Derivative[1][c][r] -
    a Derivative[1][c][r], -(1 - a) Derivative[1][c][
* ]: M# ?. n5 s     r], (1 - a) (-x (c^\[Prime]\[Prime])[r] -
       y (c^\[Prime]\[Prime])[r] - (p^\[Prime]\[Prime])[r]) +
' M* o- ?$ j: Z+ }    a ((-Q - y) (c^\[Prime]\[Prime])[r] -
       n (p^\[Prime]\[Prime])[r]), -a Derivative[1][p][r]}, {A - c -
; c4 x$ p$ D+ `& T; B7 r; J. o' G$ I& `    n x - n y - n (x + y), A - a b - c - t - n x - n y - n (x + y), 0,
6 q9 S& s) L4 x/ h2 Z6 k% p    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
7 x- S2 E% {' ]0 S& Y- f
5 {) _  a$ F( K! w6 w
5 ]8 E2 C: u) G8 U/ M

数学中国YY主管

程序有错误吧