%
% pendulum_jac.m
%
% This MATLAB function computes the Jacobian of the vector field
% defined in pendulum_vf.m.
%
% This file was generated by the program VFGEN, version: 2.5.0
% Generated on 15-Jan-2015 at 14:31
%
%
function jac_ = pendulum_jac(t,x_,p_)
Pi = pi;
theta = x_(1);
v = x_(2);
g = p_(1);
b = p_(2);
L = p_(3);
m = p_(4);
jac_ = zeros(2,2);
jac_(1,2) = 1;
jac_(2,1) = -cos(theta)*L^(-1)*g;
jac_(2,2) = -b*L^(-2)*m^(-1);