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标题:
Matlab运行到for循环直接跳过不执行问题
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作者:
zaiyiaaaa
时间:
2020-12-2 17:08
标题:
Matlab运行到for循环直接跳过不执行问题
Matlab运行到for循环直接跳过不执行问题
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代码如下：
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clear all
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clc
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%%%初始化%%%
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T=20;
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N=15000;
# `8 V0 J' m3 Z- K4 _' e% x3 ~4 x
h=T/N;
% K5 s( x+ a7 I$ u3 I$ K+ B2 s
tset=1;
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hh=3;
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k=10;c=1;b=1;
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X=zeros(4,N+1);
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V=zeros(4,N+1);
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U=zeros(4,N+1);
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E1=zeros(4,N+1);
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E2=zeros(4,N+1);
Z' t+ C. Z3 Y2 s+ {' l. U
X0=zeros(1,N+1);
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V0=zeros(1,N+1);
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E=zeros(8,N+1);
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U0=zeros(1,N+1);
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X(1,1)=20;
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X(2,1)=-21;
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X(3,1)=15;
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X(4,1)=-10;
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X0(1,1)=0;
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V(1,1)=1;
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V(2,1)=-2;
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V(3,1)=3;
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V(4,1)=-2;
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V0(1,1)=0;
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M=[-1 0 1 0;
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0 -2 1 1;
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1 1 -2 0;
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0 1 0 -1];
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[V,D] = eig(M);%%特征向量V特征值D（对角线）
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lambda = wrev(diag(D));%%D里面的对角元素取出来放到lambda
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lamb = lambda(4);
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A0 = [0 1;
0 }( @" U8 x6 F- L u
0 0];
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B0 = [0 1]';
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I4=[1 0 0 0;
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0 1 0 0;
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0 0 1 0;
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0 0 0 1];
% @6 x/ n. A- C. L, S
A = [0 1/(2*lamb);
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0 0];
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B = B0;
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N = 0;
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R = 1;
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Q = [1/2 0;
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0 1/2];
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[K,P,e] = lqr(A,B,Q,R,N);
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C=B0'*P;
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F=kron(I4,B0'*P);
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%%%迭代%%%
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for i=1:N
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tnow=T*(i/N);
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if tnow>=tset-0.01
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mu=1;
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dmu=0;
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dmu2 = 0;
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else
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mu=(Tset/(Tset-tnow))^hh;
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dmu=(hh/Tset)*(mu^(1+1/hh));
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dmu2 = hh*(hh+1)/(Tset^2)*(((Tset^hh)/((Tset-tnow)^hh))^((hh+2)/(hh)));
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end
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X0(1,i+1)=h*(sin(tnow))+X0(1,i);
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V0(1,i+1)=h*(cos(tnow))+V0(1,i);
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U0(1,i)=-sin(tnow);
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l1=[1,1,1,1]';
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% V3 M, Q; B, T3 A" H4 X
E1(:,i)=M*(X(:,i)-l1*X0(1,i));
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E2(:,i)=M*(V(:,i)-l1*V0(1,i));
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E(:,i)=[E1(1,i);E2(1,i);E1(2,i);E2(2,i);E1(3,i);E2(3,i);E1(4,i);E2(4,i)];
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U(:,i)=l1*U0(1,i)-F*E(:,i)-(k+c*(dmu2/mu))*(X(:,i)-l1*X0(1,i))-2*(k+c*(dmu/mu))*(V(:,i)-l1*V0(1,i));
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X(:,i+1)=h*V(:,i)+X(:,i);
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V(:,i+1)=h*U(:,i)+V(:,i);
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i
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end
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%%%作图%%%
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t=linspace(0,T,N+1);
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figure(1)
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plot(t,X(1,
,'linewidth',2);
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hold on;
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plot(t,X(2,
,'linewidth',2);
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hold on;
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plot(t,X(3,
,'linewidth',2);
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hold on;
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plot(t,X(4,:),'linewidth',2);
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hold on;
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plot(t,X0(1,:),'linewidth',2);
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hold on;
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grid on;
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axis([0 20 -30 30])
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legend('X1','X2','X3','X4','X0');
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title('X')
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figure(2)
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plot(t,V(1,:),'linewidth',2);
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hold on;
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plot(t,V(2,:),'linewidth',2);
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hold on;
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plot(t,V(3,:),'linewidth',2);
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hold on;
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plot(t,V(4,:),'linewidth',2);
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hold on;
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plot(t,V0(1,:),'linewidth',2);
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hold on;
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grid on;
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legend('V1','V2','V3','V4','V0');
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title('V')
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$ ]) {$ d% ?# R# Y; u- O T8 _
figure(3)
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plot(t,E1(1,:));
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hold on;
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plot(t,E1(2,:));
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hold on;
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plot(t,E1(3,:));
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hold on;
& O6 p8 _6 c5 B& I
plot(t,E1(4,:));
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hold on;
) S+ }; M! n; n$ v6 x
grid on;
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title('EX')
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figure(4)
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plot(t,E2(1,:));
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hold on;
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plot(t,E2(2,:));
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hold on;
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plot(t,E2(3,:));
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hold on;
7 A: ?% [4 ]* ~. {$ H5 \
plot(t,E2(4,:));
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hold on;
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grid on;
) R+ ?; M+ D3 `# K
title('EV')
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figure(5)
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plot(t,U(1,:));
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hold on;
& \6 a: l! m8 F2 B p# q
plot(t,U(2,:));
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hold on;
5 x' b+ T; K/ d0 t8 d+ |
plot(t,U(3,:));
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hold on;
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plot(t,U(4,:));
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hold on;
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grid on;
" f3 ^# O9 q$ W# z) O( {
title('U')
作者:
shuddkk
时间:
2020-12-2 18:10
N = 0;
9 o" f! y! S. u/ ^
R = 1;
/ i0 C k+ o6 r1 x/ ^8 i
Q = [1/2 0;
2 `: Z5 d: u" b6 B+ H
0 1/2];
1 h6 Q4 n! d" L$ M- k% |3 n- Y
[K,P,e] = lqr(A,B,Q,R,N);
1 m/ r0 e- E7 l7 w5 X) ~
C=B0'*P;
4 t6 N4 s1 C) D: p% K$ J2 W
F=kron(I4,B0'*P);
+ R. b5 b' }- \4 i# h: D% Q" Q
. C' T* Y* \: w0 S
# L e; y' B# B1 I" R
%%%迭代%%%
7 P& i+ i) S# Z$ G
for i=1:N
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N等于零，如何运行？
作者:
zzz.dan
时间:
2020-12-2 18:12
来学习一下
作者:
nkkopd
时间:
2020-12-3 14:31
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,'linewidth',2);: G! h) x8 j u1 g* ~7 J9 {, C G7 E,'linewidth',2);,'linewidth',2);