MATLAB: How to solve it and make a graph for it

MATLABthe equation of spring motion

Best Answer

odefun=@(x,u)[u(2);(sin(x)-2*u(2)-7*u(1))/3];
tspan=[0 2*pi];%assumed interval for x
uzero=[0 0];%not sure what your boundary conditions are [u(0), u'(0)]
[x,u]=ode45(odefun,tspan,uzero);
plot(x,u)

Related Solutions

MATLAB: Is it right

Looks right to me. I just fancied it up a bit:

x = [-3:3]
y = 3*x.^4-6*x.^3+8*x.^2+4*x+90;
z = 3*x.^3+5*x.^2-8*x+70;
plot(x, y, 'bo-', 'LineWidth', 2)
hold on;
plot(x, z, 'rd-', 'LineWidth', 2)
grid on;
xlabel('Voltage (V)', 'FontSize', 20)
ylabel('Current in Milliamperes (mA)', 'FontSize', 20)
title('Voltage vs. Current', 'FontSize', 20)
legend('y', 'z', 'Location', 'north');
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0, 0.04, 1, 0.96]);

MATLAB: It’s a bug

It‘s called floating point comparison just search with the tag floating-point in this forum you will find lot of reasons

abs(alfa-alfa2)<1e-04

Best Answer

Related Solutions

MATLAB: Is it right

MATLAB: It’s a bug

Related Question