F := int(1/((-x^2+1)*(-r*x^2+1))^(1/2), x = 0 .. 1): 0 `5 s @8 a: q) {5 NG := subs(r = (u2^2+u3^2)/(u1^2+u3^2), F): ! q/ x2 o& B: @$ V" J7 G0 @Q := subs({u1 = 2.2*10^2, u2 = 0}, G): $ c/ b# n H" I/ p1 @# d3 {plot(Q, u3 = -10 .. 10) 3 S) o: h9 S% P& j0 P" i% B这个程序运行的时候提示Warning, unable to evaluate the function to numeric values in the region; see the plotting command's help page to ensure the calling sequence is correct . Q) I3 p; Y+ f是调用顺序上错误,能帮我看看是哪里的调用顺序有问题吗? 3 n) |3 W. W5 W9 R. Z2 Z5 D; Z