HTML_EDITOR Intro Page true true Designed by Fu-Kwun Hwang http://www.phy.ntnu.edu.tw/ntnujava/ ]]> 20 true VARIABLE_EDITOR coordinate true true range double xmin double xmax double ymin double ymax double t double dt double size double size2 double sc double cs double stroke double double VARIABLE_EDITOR basic true true x double y double vx double vy double yh double cta double PX double [3] PY double [3] m double g double mu double N double fr double xc double yc double nf double scale double double VARIABLE_EDITOR language true true l_play String l_pause String l_reset String l_init String label String l_step String msg String l_nf String l_f String msgf String String CODE_EDITOR Init Page true true ODE_EDITOR Evol Page true true t dt vx vy getA(cta)*Math.cos(cta) -getA(cta)*Math.sin(cta) MidPoint CODE_EDITOR Cons Page true true LIBRARY_EDITOR chinese true true LIBRARY_EDITOR playpause true true LIBRARY_EDITOR getA true true mu)return m*g*(Math.sin(c)-mu*Math.cos(c)); else return 0.; } ]]> LIBRARY_EDITOR dragcta true true m*g*sc){ fr=m*g*sc; nf=0.; }else{ fr=mu*N; nf=m*g*sc-mu*N; } vx=vy=0; } ]]> true Elements.Frame Frame true true Elements.Panel Panel Frame south Elements.Slider Slidermu Panel true Elements.Panel Panel2 Panel Elements.Button reset Panel2 Elements.Button initial Panel2 Elements.Bar Bar Panel2 Elements.Button Buttonplay Panel2 true Elements.DrawingPanel DrawingPanel Frame center Elements.Particle Particle DrawingPanel Elements.Poligon Polygon DrawingPanel Elements.Arrow Arrowmg DrawingPanel Elements.Arrow Arrowf DrawingPanel Elements.Arrow Arrownf DrawingPanel 0]]> Elements.Text Text DrawingPanel Elements.Text TextF DrawingPanel Elements.Slider Slidercta Frame west