restart:
p := plot(sin(x), x):
op(1, op(1, p));

 edit: forgot it should be  implicitplot, but it probably can be done in a similar way.

replace sum with  the add command.

Maplesoft really should rename the sum command to sumButYouCertainlyMeanAdd or something.

Please tell us where these equations come from. Maybe there's a better way to formulate your problem.

LinearAlgebra[Transpose](Matrix([seq([n,2*n+8],n=1..10)]));

.

...like the plague.

Just do a simple loop:

restart:
P:=15000:E[1]:=1:
for n from 1 to 20 do  E[n+1]:=E[n]+E[n]*(P-E[n])/P*10.0  od;

f:=exp(x)+exp(-x):convert(f,cosh)

try to reinstall Maple

try turning off your firewall, just to check that essential tasks aren't blocked.

This accelerates Roberts solution a lot. Thanks to you both.

F'(1)

solve(a*b*c=sqrt(a+2)*d*e,a);

see ?LinearAlgebra,Basis

It is not *exactly* what you want, but i post it anyway. Change tickmarks as needed.

restart:
p1:=plot(sin(x),x=0..2*Pi):p2:=plot(cos(x),x=0..2*Pi):
a:=Matrix(2,1,[p1,p2]):
plots[display](a);

It is just one root of the Polynomial z^3+1. Maple gives you a numeric approach for one root.

Hi, type

whattype(B);

What message do you get ?