File 'ode1' not found.

Hi guys, if I type this (type ode1) I'm going to make these mistakes! Error using type File 'ode1' not found. why? Thanks

Answer 1

[Walter Roberson]

See https://www.mathworks.com/matlabcentral/answers/98293-is-there-a-fixed-step-ordinary-differential-equation-ode-solver-in-matlab-8-0-r2012b#answer_107643

Answer 2

[Alvin]

You can create one yourself, then you can type it.

function [yout] = ode1(F, t0, h, tfinal, y0)
% ODE1 is a simple ODE solver. 
%  dy/dt = F(t, y) with y(t0) = y0
y = y0;
yout = zeros((tfinal-t0)/h+1, 1);  yout(1) = y0;
for t = t0+h : h : tfinal
    s = F(t, y);                                 % Slope
    y = y + h * s;                             % from y(t) to y(t+h)
    yout(round((t-t0)/h+1)) = y;    % list of y's are recorded
end
end

[Walter Roberson]

You can, but in my answer I linked to some pre-written fixed-step ODE solvers supplied by Mathworks