clc; close all; clear all; delta_t=0.01; t0=0; v0=0; a0=0; tfin=30; N=3000; delta_t=(tfin-t0)/N; %INICIALIZACIÓN M=zeros(N+1,3); M(1,1)=t0; M(1,2)=v0; M(1,3)=a0; t=t0; i=1; tol_ac=1e-5; while(t