Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- %IFPB 09/08/2017
- %METODO DE EULER
- %EXEMPLO DE APLICACAO - SISTEMA PREDADOR X PRESA
- %X - TEMPO
- %Y - PRESA
- %Z - PREDADOR
- clear all, close all, clc,
- A=0; B=15; H=0.1; H1=H/2; %MALHA NO TEMPO
- M=(B-A)/H; %ITERACOES RK4
- X(1)=A; Y(1)=80; Z(1)=30; %VALORES INICIAIS
- for J=1:M
- Y(J+1)=Y(J)+H*FP(X(J),Y(J),Z(J));
- Z(J+1)=Z(J)+H*GP(X(J),Y(J),Z(J));
- X(J+1)=X(J)+H;
- end
- %[X' Y' Z']
- a=plot(X,Y,'k',X,Z,'b'); set(a,'LineWidth',2);
- pause,close
- a=plot(Z(1),Y(1),'ro',Z,Y,'b'); set(a,'LineWidth',2);
- legend('VALOR INICIAL','PREDADOR X PRESA',4);
- xlabel('PREDADORES'), ylabel('PRESAS')
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement