1off echo,msg;
2on latex;
3((a+b)**5)\(a-b)**4;
4x:=(a+b)**3;
5{x,df(x,a),df(x,a,2)};
6{{a,x},x};
7on verbatim;
8solve(a^7-13*a+5);
9solve(a**(2*y)-3*a**y+2,y);
10off verbatim;
11depend a,c;
12df(x,c,2);
13defid al,name=alpha;
14defid be,name=beta;
15sin al**2+cos al**2=1;
16sin(al+be)=sin al*cos be+cos al*sin be;
17off lasimp;
18defid u,font=bold,accent=tilde;
19defid f,font=bold;
20defid d,name=delta;
21defindex u(up,down,down),f(up),i(down);
22pdf(u e,t)+c*pdf(u e,x,2)+b*pdf(u i,x)=f e;
23(u(e,j+1,k)-u(e,j,k))\ d t +c*(u(e,j,k+1)-2*u(e,j,k)+u(e,j,
24k-1))\d(x)**2+ b*(u(i,j,k+1/2)-u(i,j,k-1/2))\d x=f e;
25on verbatim;
26product(k=1,2*n+1,f(2*i k+1)\(i(2*k+1)-1));
27int(u(e,j,k,x)*f(e,x),x);
28sum(i=0,n,sqrt u(e,i));
29off latex,verbatim;
30on lasimp;
31end;
32