请教ContourPlot出不了图这是为什么，代码如下，图如下

水墨林

1. k = 2*10^9; d = 10; M = 2.19*10^9; P = 9 u8 [: E3 M' L3 `# v' q/ N; ^
   
2. 2.19*10^9; t = 1; h = 0.025; q = 1000;5 U0 e' U3 a3 V7 e3 [8 t
   
3. w = 0.01; r = 0.1
   , A- ]. O. Z+ L* M2 ?
4. A = (3*M*P)/(M*P + 3*k*M + 3*k*P);
   7 B$ U- J( q) H% O
5. # k0 L8 ~\" D4 _8 Y$ v\" y
   
6. B = (3*M)/(P + 3*k);. G7 x$ s6 X# h9 J6 {
   
7. \" q$ @8 Y: P' w7 Y) f; J! ]: U( r9 q
   
8. Q = (3*k*M + 3*k*P + 7*M*P)/(M*P + 3*k*M + 3*k*P);9 o7 s9 y: V  c& L8 M% d3 |% F. X
   
9. s = (7*M + 6*k)/(P + 3*k);
   7 v% X; W) T7 L
10. a = E^((M*P*t + 3*k*M*t + 3*k*P*t)/(3*k*d + P*d))* h# c  H9 `3 `& l. w) \/ i
    
11. G = (z - h)/Sqrt[(r^2 + z^2 - 2*h*z + h^2)] - (z - h)/
    ! I/ {& h# v9 Q( S3 z% r3 e$ T
12.    Sqrt[(r^2 + h^2 + 2*h*z + z^2)];\" _, v% _- s$ P4 C/ K% M. N
    
13. H = (z^3 - h^3 - 3*z^2*h + 3*h^2*z)/Power[z^2 - 2*h*z + h^2 + r^2, (\" @9 ]* I1 Z' K4 Z2 C* I; i
    
14.   3)^-1];
    # a  G) n: U0 R7 W. l' g
15. U = (z^3 + 2*h*z^2 + z*h^2)/Power[z^2 + 2*h*z + h^2 + r^2, (3)^-1];- i* f# C$ o: d
    
16.   N3 [1 S+ P) c5 x0 b. V* D$ W( g
    
17. J = (18*h^2*z^3 + 18*h^3*z^2 + 6*h^4*z + 6*h*z^4)/Power[& x* {1 u  |\" }! p3 E6 d, E$ v( K
    
18.   z^2 + 2*h*z + h^2 + r^2, (5)^-1];% [( r. i5 M* H0 I0 R
    
19. M = 1 - h^3/Power[h^2 + w^2, (3)^-1];
      w\" }$ t7 J+ ?: q4 K$ v7 ?* C4 w& \
20. L[r_, z_] = ( [7 t* u5 y4 W7 h
    
21.   4*q*M*A*G - 4*q*M*a*G*A + 4*q*M*a*G*B + 4*q*M*H + 4*q*M*U*Q -
    \" A# e3 N. @7 `: ?7 @& R3 J
22.    4*q*M*a*U*Q + 4*q*M*s*a*U + 4*q*M*s;$ m3 w/ n2 L- h: @. V\" _
    
23. ContourPlot[c[r, z], {r, 0, 0.0001}, {z, 0.025, 0.035}]

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newanswer

楼主，这个是想要用什么软件做图

宏心

Syntax::bktmcp: Expression "[8W'|-c2_" has no closing "]".

宏心

Syntax::bktmcp: Expression "[8W'|-c2_" has no closing "]".