F := int(1/((-x^2+1)*(-r*x^2+1))^(1/2), x = 0 .. 1):0 g, y# h; M! ]0 ?9 a( X' K# O
G := subs(r = (u2^2+u3^2)/(u1^2+u3^2), F): + V) G% s/ \, ^2 dQ := subs({u1 = 2.2*10^2, u2 = 0}, G): - g/ k$ U# `" Wplot(Q, u3 = -10 .. 10) [9 i4 W: L7 Y! G9 H5 r7 V3 k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 correct8 X6 {! G3 z/ ]3 [4 }: X5 O/ ]1 b% O+ L
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?6 H y8 W4 C* n, H9 m