%
% pendulum_vf.m
%
% MATLAB vector field function for: pendulum
%
% This file was generated by the program VFGEN (Version:2.4.0)
% Generated on 16-Jul-2008 at 20:17
%
%
function vf_ = pendulum_vf(t,x_,p_)
    Pi = pi;
    theta      = x_(1);
    v          = x_(2);
    g          = p_(1);
    b          = p_(2);
    L          = p_(3);
    m          = p_(4);
    vf_ = zeros(2,1);
    vf_(1) = v;
    vf_(2) = -m^(-1)*v*L^(-2)*b-sin(theta)*g*L^(-1);