var ex,y,c,d; var alpha,beta; function sample(){ ex=100; c=0; alpha=0.5; beta=0.5; w=0.2; r=0.3; d1=0; d2=0; var timer; var delay = 1000; var loop = function () { y1=ex+d1; y2=c+d2; c=w*y1+w*y2; d1=alpha*y2; d2=beta*y1; $("#memo").html(y1+","+y2); clearTimeout(timer); timer = setTimeout(loop, delay); } loop(); }