アットウィキロゴ

Deqplot(right-hand side of eq, range of x, name of function, x0, y0{, number of points})

make PD of a diffential equation.
¦ The equation is the form of y0 = f(x, y) or y00 = f(x, y, y0).
¦ y0 should be described as Dy.
Ex) G1=Deqplot( y*(1-y) , x , y ,0, 0.2, N=100 );—
Ex) G2=Deqplot( -2*Dy-3*y , x=[0, 5] , y ,0, [1 ; 0]);

Deqplot(equation, x range, x0, y0f, number of pointg)

make PD of a diffential equation.
¦ y0 should be described as y
Ex) G1=Deqplot(’y =y*(1-y)’,’x’,0,0.2,’N=100’);
Ex) G2=Deqplot’(’y =-0.4*y‘-3*y’,’x=[0,5]’,0,[0,2]);
Ex) G3=Deqplot(’[x,y] =[x*(1-y),0.3*y*(x-1)]’,...
’t=[0,20]’,0,[1,0.5],’N=200’);
最終更新:2013年12月02日 21:31