F := int(1/((-x^2+1)*(-r*x^2+1))^(1/2), x = 0 .. 1):# a( _7 g- u0 p' Q
G := subs(r = (u2^2+u3^2)/(u1^2+u3^2), F): # q) o: {& t" K) P7 m% d2 ?Q := subs({u1 = 2.2*10^2, u2 = 0}, G):5 v, u1 C9 `( l3 z
plot(Q, u3 = -10 .. 10)# _4 m5 R; D$ o& d3 e: I) z2 |/ Z
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 ! |3 a3 `! i2 d& b6 i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?/ }) k+ i1 g, a j