odeeul.m

来自「Matlab学习课件」· M 代码 · 共 13 行

function [t,x,stats] = odeeul(func,dt,x0,options)
% Fixed step size euler integration
% Used only with discrete-time simulations, it takes one step from
% time 0 to dt and returns only the results at the end of the step.
%THIS IS NOT A GENERAL PURPOSE INTEGRATOR!
% 'dt' must be a scalar

xx0 =x0;	% The dummy variable fixes a strange bug!?
xdot = feval(func,0,x0);	% Get righthand side
x = xx0 + xdot * dt;
stats = 0;		% To match the call to ode23; not used here
t = dt;