请教ContourPlot出不了图这是为什么，代码如下，图如下
k = 2*10^9; d = 10; M = 2.19*10^9; P =2.19*10^9; t = 1; h = 0.025; q = 1000;
w = 0.01; r = 0.1
A = (3*M*P)/(M*P + 3*k*M + 3*k*P);
B = (3*M)/(P + 3*k);
Q = (3*k*M + 3*k*P + 7*M*P)/(M*P + 3*k*M + 3*k*P);
s = (7*M + 6*k)/(P + 3*k);
a = E^((M*P*t + 3*k*M*t + 3*k*P*t)/(3*k*d + P*d))
G = (z - h)/Sqrt[(r^2 + z^2 - 2*h*z + h^2)] - (z - h)/
Sqrt[(r^2 + h^2 + 2*h*z + z^2)];
H = (z^3 - h^3 - 3*z^2*h + 3*h^2*z)/Power[z^2 - 2*h*z + h^2 + r^2, (
3)^-1];
U = (z^3 + 2*h*z^2 + z*h^2)/Power;
J = (18*h^2*z^3 + 18*h^3*z^2 + 6*h^4*z + 6*h*z^4)/Power[
z^2 + 2*h*z + h^2 + r^2, (5)^-1];
M = 1 - h^3/Power;
L =
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 -
4*q*M*a*U*Q + 4*q*M*s*a*U + 4*q*M*s;
ContourPlot, {r, 0, 0.0001}, {z, 0.025, 0.035}]
楼主，这个是想要用什么软件做图
Syntax::bktmcp: Expression "".
Syntax::bktmcp: Expression "".
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