A = {{-2 (1 - a) - a, 4 y( j8 p: W- @$ |, P& x; P# T
0, -(1 - a) Derivative[1][c][r] - # ?& X$ H/ G; U" \$ t+ P7 f/ ]) f
a Derivative[1][c][r], (1 - a) (-x - y) + / C$ L6 ?* \- b! t a (-x - y)}, {0, -2 (1 - a), -(1 - a) Derivative[1][c][ 5 J% }4 E/ x8 [3 ?+ `1 l r], -a (-a b + t)}, {-(1 - a) Derivative[1][c][r] - t, s3 k8 R0 X5 v a Derivative[1][c][r], -(1 - a) Derivative[1][c][3 J3 o7 `, Y* i1 w7 E8 U4 V
r], (1 - a) (-x (c^\[Prime]\[Prime])[r] - ) t8 b1 |) R& \- u; }
y (c^\[Prime]\[Prime])[r] - (p^\[Prime]\[Prime])[r]) + . R& ~/ l( O6 A2 n
a ((-Q - y) (c^\[Prime]\[Prime])[r] - 4 P5 C# q; }! _$ a- ? Z( y D
n (p^\[Prime]\[Prime])[r]), -a Derivative[1][p][r]}, {A - c - % O7 _, j N& W& A/ z* L n x - n y - n (x + y), A - a b - c - t - n x - n y - n (x + y), 0,: X) h- g- Y& e1 n0 [0 w6 M
x (-x - y) + (-x - y) y}}; B = {0, (-1 + a - a n) K, 0, -x K} - i1 ~. v+ [# \7 `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# D" M% \) B* ~8 w$ _# p