b.limour.top/source/_posts/maxima辅助检查高数作业.md

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title: Maxima辅助检查高数作业 tags:

• Maxima
• 高数 id: '126' categories:

• • 软件分享

    date: 2020-05-16 15:03:41

    a:0;b:1;p:1;q:1;
    v1(x):=a1*x+a2;
    v2(x):=b1*x+b2;
    y(x) := v1(x)*e^(a*x)*sin(b*x)+v2(x)*e^(a*x)*cos(b*x);
    t(x):=diff(y(x),x,2)+p*diff(y(x),x,1)+q*y(x);
    u(x):=subst(1,log(e),ratsimp(t(x)/e^(a*x)));
    u(x);
    linsolve([a1=0,b1+a2+2*a1=0,-b1=1,-b2-2*b1+a1=0],[a1,b1,a2,b2]);