MatLab: calling ode45 with parameter passing in
MatLab: calling ode45 with parameter passing in
(OP)
% How do I call sumX in ode45 where I can pass in 'ab' paramter? x & y are part of the ODE problems
% tspan=[0 20] initial value: [0 1] options []
[T Y]=ode45(@sumX,[0 10],[0 1],[]);
% sumX.m
function dy=sumX(ab,x,y)
dy1=y(2);
dy2=-y(1)+ab*(y(1)^2);
dy=[dy1; dy2];
%%%%%%%%%%%%%%%
Thanks
% tspan=[0 20] initial value: [0 1] options []
[T Y]=ode45(@sumX,[0 10],[0 1],[]);
% sumX.m
function dy=sumX(ab,x,y)
dy1=y(2);
dy2=-y(1)+ab*(y(1)^2);
dy=[dy1; dy2];
%%%%%%%%%%%%%%%
Thanks





RE: MatLab: calling ode45 with parameter passing in
function dy = sumX(x,y,ab)
dy1 = y(2);
dy2 = -y(1) + ab*(y(1)^2);
dy = [dy1;dy2];
then call using ode45
[T,Y] = ode45(@sumX,[tspan],[initial],[options],ab);
after the options space you can pass any parameters you want into ode45. This helps if you must change parameters often, and don't like editing the script file.