新人求带，计算一个方程组

xiaoge603

A = {{-2 (1 - a) - a,
5 u# P/ z& v1 u! P) B   0, -(1 - a) Derivative[1][c][r] -
- ~* X. m, N8 \    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][
     r], (1 - a) (-x (c^\[Prime]\[Prime])[r] -
! b  A+ V6 L9 U: |" l       y (c^\[Prime]\[Prime])[r] - (p^\[Prime]\[Prime])[r]) +
2 x+ P* g2 U- l) L0 r& w0 z3 {    a ((-Q - y) (c^\[Prime]\[Prime])[r] -
% f. l7 {0 V5 y# n0 N- q& T  R* t       n (p^\[Prime]\[Prime])[r]), -a Derivative[1][p][r]}, {A - c -
5 j6 c$ A) P6 ~( u; H5 R" _* K    n x - n y - n (x + y), A - a b - c - t - n x - n y - n (x + y), 0,
" I) U8 O5 f$ L! J0 r  \; h    x (-x - y) + (-x - y) y}}; B = {0, (-1 + a - a n) K, 0, -x K}
4 M% g+ s( F( `6 Q( T  ~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


3 [) D, S' U7 ]2 C3 u9 C! S

数学中国YY主管

程序有错误吧