true true true DESCRIPTION_EDITOR Intro Page true Designed by Fu-Kwun Hwang http://www.phy.ntnu.edu.tw/ntnujava/ ]]> 20 1 false VARIABLE_EDITOR coordinate true VARIABLE_EDITOR basic true VARIABLE_EDITOR language true VARIABLE_EDITOR view true ODE_EDITOR ODE true t dt dt vx vy calf(x,y,cta) (f1x+f2x)/m (f1y+f2y)/m-g omega w*((f2y-f1y)*Math.cos(cta)-(f2x-f1x)*Math.sin(cta))/I RungeKutta CODE_EDITOR 關係式 true LIBRARY_EDITOR chinese true LIBRARY_EDITOR playpause true LIBRARY_EDITOR calf true LIBRARY_EDITOR action true false Elements.Frame Frame true false Elements.Panel Panel Frame south Elements.Slider Sliderk1 Panel Elements.Slider Sliderk2 Panel false Elements.Panel Panel3 Panel Elements.Button reset Panel3 Elements.Button initialize Panel3 Elements.Button playpause Panel3 Elements.CheckBox show Panel3 false Elements.Panel Panel2 Frame center false Elements.DrawingPanel DrawingPanel Panel2 center Elements.Trace Trace DrawingPanel Elements.Trace Trace2 DrawingPanel Elements.Particle bar DrawingPanel Elements.Spring Spring1 DrawingPanel Elements.Spring Spring2 DrawingPanel Elements.Arrow Arrowmg DrawingPanel Elements.Arrow ArrowF1 DrawingPanel Elements.Arrow ArrowF2 DrawingPanel