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x
syms x z q m t c
P, ]+ g; Z" F+ [3 M# m0 Xm=0.5;
' A7 X% z; }- ]: BR=40;
9 J1 R" F S5 F- L2 E+ xq=200;6 T5 b/ D' J$ h- ^" K3 A: T. Y
e=1;f=1;: a2 K2 k/ r2 U2 s- }
Z= []9 o: T! L A+ b# B
for X=[-55:2:55];
8 a( }. v7 z, N5 u$ L3 k' { for Y=[-55:2:55] ' Z2 ^/ A( q+ Z
syms r y
$ T- l$ @' e7 I H& E+ Y if ((X.*X)./3600+(Y.*Y)./400)<1;* Q# o( w2 H3 E- X% }% E
7 C% J. O& |% J& `: w6 xZ(e,f)=nan;8 I7 B; E( I1 k% M0 ~) }
0 r1 a* O9 m4 w5 O2 r" h7 Xf=f+1;1 W1 B7 Q' W1 D+ W
continue
( o! m; F' [% i+ W7 P else8 P" C1 I* b$ w# Y' i
a=X.*X
, h: S( G- V3 u' a/ b b=Y.*Y+ ?* A# o4 p/ _
- C6 M) S9 Z, A, m
end
" e$ P# j5 }* U- E( c& {$ N+ p- Z [r]=solve((a./(R.^2*(1./r+m.*r).^2)+b./(R.^2.*(1./r-m.*r).^2))==1,r);+ |; v/ f3 O" l/ o' B6 a& O
[y]=solve((a./(4.*R.^2.*m.*(cos(y)).^2)-b./(4.*R.^2.*m.*(sin(y)).^2))==1,y);& k2 k# _, Y, _0 _3 O4 m9 u
% \! s# W4 B$ W& U* c5 \* c. o
y=vpa(y);
( ~6 Y _4 n- b# f2 O! p: `9 x5 A3 vJ=y(y>0);" ]; l9 h/ h, U. V/ w5 d: F+ V
K=J(J<2*pi);
& o: J1 H8 w* S; sL=K(imag(K)==0);
" W! G1 c. Z0 r* J
" D3 O2 d. c1 Z2 T9 O& Yr=vpa(r);0 J1 h- m5 F! |& X
G=r(r>0);
+ h5 L1 ]) Y' W# z" mH=G(G<1);( P* m% v9 U, f8 W& j
I=H(imag(H)==0);
9 y& g( Q3 J. Q' w6 \6 C# y" {
. ]. ^7 X& E, ]9 x. y6 {0 k2 K: t
' |/ C: c; Z4 B5 y5 ~$ ?6 m/ I8 K; p$ y& t+ ]
x=0.5*pi;
" u0 D% x* B9 N' f+ N
) y/ `+ O+ t, j# ~0 f" Y; J" YA=q*real(((2.*exp(2.*i.*x)-m).*(I.*exp(i.*L)).^2-1)./(m.*(I.*exp(i.*L)).^2-1));
5 h4 c: Y! V$ B) }/ \, @B=((q*(m*I^4+(I*exp(i*L))^2)*(I*exp(i*L))^2)./(I^4*(m-(I*exp(i*L))^2./I^4)*(m*(I*exp(i*L))^2-1))*((2*exp(2*i*x)-m+m*(1+m*(I*exp(i*L))^2-2*exp(2*i*x)*(I*exp(i*L))^2)/(m*(I*exp(i*L))^2-1)))+q/(I^2*(m-(I*exp(i*L))^2/I^4))*(exp(-2*i*x)-((3*exp(2*i*x)*(I*exp(i*L))^2+m*exp(2*i*x)-m^2-1)*(I*exp(i*L))^2)/(m*(I*exp(i*L))^2-1)+((exp(2*i*x)*(I*exp(i*L))^2+m*exp(2*i*x)-m^2-1)*(I*exp(i*L))^4)*2*m/(m*(I*exp(i*L))^2-1)^2));
% ~; {' D, D/ h9 ~+ d0 A1 ?2 R1 l
/ E! q2 P+ c, V- E+ h. W" h- sO=B./((I.*exp(i.*L)).^2.*(R.*(m-1./(I.*exp(i.*L)).^2))).*(I.^2.*R.*(m-(I.*exp(i.*L)).^2./I.^4));
. K( l: l6 |0 A- P4 q8 h% B2 D+ ]2 C5 C' _. P+ a
D=(A+real(O))./2;
( ^3 M! H0 ?: b5 U) ?E=(A-real(O))./2;
# z7 X8 C8 T E9 l$ j) H$ @0 oF=sqrt(D.^2+E.^2);' U4 a. D9 h e0 J* Z3 e- f
Z(e,f)=E
' _; v, N8 R9 N! x5 k. B; j
0 n5 G9 F) \5 T: u; b- o- pf=f+1;
8 w7 | W3 }7 a1 P4 F end
, J; l7 x/ ]% Y; E e=e+1;$ w) n3 p4 U1 o: F% F! Y6 u. E
f=1;
9 S9 w `8 `) U) }6 X6 i4 Q$ bend7 S& l- G" M1 M) g" P% D
[d]=[-55:2:55];
2 S9 y+ `5 R3 v+ f+ p( U9 k& f[c]=[-55:2:55];
0 Y2 d% H; e) |' \, t%idy =d.^2./3600+c.^2./400< 1;
. u: ]$ m# q3 i1 z0 a/ e! X' D%d(idy) = nan;
" O9 t3 J4 c* G8 ?1 m%c(idy) = nan;% X; [, M1 c8 B, g$ z' r
: I+ S$ p& f9 W* q0 tfigure(3)
) I r3 X1 Z" {3 X% r/ [suRF(d,c,Z)
) S0 w8 m" ` C% O a%surf(d,c,Z)4 E4 E/ C q/ e
%view([0,1,0]);: i0 c3 T0 G) K: `6 p- Z0 E
shading interp;
) I+ Z* M' W' |+ X% |$ |colorbar; $ s& y5 f9 W7 N9 o B4 R
%axis equal;; _- \$ s/ V: @( Q
这个函数运行后可以产生Z的矩阵值,但是surf不显示图像,但我将xy的范围定义在-45到45的时候会显示图像,请问是什么问题/ z7 R# v6 u& j( b; p# R+ n& C8 p
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