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 stroke double gcst double a double zero double g double b double gvxmax double double VARIABLE_EDITOR grid true true ng int ng2 int ng4 int GX double [ng4] GY double [ng4] bgmove boolean gvx double gx double gy double double VARIABLE_EDITOR basic true true x0 double y0 double x double y double vx double vy double vcst double double VARIABLE_EDITOR language true true l_play String l_pause String l_reset String l_init String label String l_step String String VARIABLE_EDITOR view true true n int px double [n+2] py double [n+2] r double c double double CODE_EDITOR Init Page true true CODE_EDITOR Init Page 2 true true ODE_EDITOR ODE true true t dt vx -2*c*x*g-a*g-b*vx RungeKutta ODE_EDITOR 微分方程式 true true t dt -gvx a MidPoint CODE_EDITOR Cons Page true true gvxmax)gvx=gvxmax; else if(gvx<-gvxmax)gvx=-gvxmax; ]]> LIBRARY_EDITOR chinese true true LIBRARY_EDITOR gridinit true true gdx)gx-=gdx; else if(gx<0)gx+=gdx; if(gy>gdy)gy-=gdy; else if(gy<0)gy+=gdy; } ]]> LIBRARY_EDITOR playpause true true true Elements.Frame Frame true true Elements.Panel Panel Frame south Elements.Slider Slidera Panel Elements.CheckBox showa Panel Elements.Button reset Panel Elements.Button init Panel Elements.Button play Panel Elements.Slider Sliderb Panel true Elements.DrawingPanel DrawingPanel Frame center Elements.Poligon grid DrawingPanel Elements.Poligon Polygon DrawingPanel Elements.Particle Particle DrawingPanel Elements.Arrow Arrowh DrawingPanel Elements.Arrow Arrow DrawingPanel Elements.Arrow Arrowg DrawingPanel Elements.Particle Particle2 DrawingPanel Elements.Arrow Arrowv DrawingPanel Elements.Arrow ArrowA DrawingPanel Elements.Text Texta DrawingPanel