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) +
9 O+ [( o8 }$ t! I0 R/ A" I, r; r    a (-x - y)}, {0, -2 (1 - a), -(1 - a) Derivative[1][c][
     r], -a (-a b + t)}, {-(1 - a) Derivative[1][c][r] -
7 y$ Z' a" E: U% c! M    a Derivative[1][c][r], -(1 - a) Derivative[1][c][
# A$ m' h5 [& e1 d# H2 H     r], (1 - a) (-x (c^\[Prime]\[Prime])[r] -
       y (c^\[Prime]\[Prime])[r] - (p^\[Prime]\[Prime])[r]) +
    a ((-Q - y) (c^\[Prime]\[Prime])[r] -
; G5 K# |2 ^: c4 p4 k       n (p^\[Prime]\[Prime])[r]), -a Derivative[1][p][r]}, {A - c -
- k* y* \5 ^+ {& l% y/ d    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

- Y3 L& o: m' k: k5 e4 ~/ J8 ~

数学中国YY主管

程序有错误吧