@pzwp The difference between expand and Expand is in the order of evaluation. With

expand((1+x)*x) mod 2

the expand is done first, then the mod. With

Expand((1+x)*x) mod 2

the mod is applied to the factors before expanding. Compare the difference in the amount of time between

expand((1+2*x)^(2^16)) mod 2

and

Expand((1+2*x)^(2^16)) mod 2.

@pzwp The difference between expand and Expand is in the order of evaluation. With

expand((1+x)*x) mod 2

the expand is done first, then the mod. With

Expand((1+x)*x) mod 2

the mod is applied to the factors before expanding. Compare the difference in the amount of time between

expand((1+2*x)^(2^16)) mod 2

and

Expand((1+2*x)^(2^16)) mod 2.

@Alejandro Jakubi Surely it is a bug that when such is placed in a procedure, nothing happens---no error message, no response, nothing.

How do you get those Typesetting error messages?

@Alejandro Jakubi Surely it is a bug that when such is placed in a procedure, nothing happens---no error message, no response, nothing.

How do you get those Typesetting error messages?

You can enter the expression with unevaluation quotes:

'((D-2)^2)(f)(x)'

Note that function definition should be done as f:= x-> ..., not as f(x):=.

You can enter the expression with unevaluation quotes:

'((D-2)^2)(f)(x)'

Note that function definition should be done as f:= x-> ..., not as f(x):=.

What does the syntax

m=-4.65...*10^8,n= 8.65..*10^8

mean? I cannot input it to Maple.

What does the syntax

m=-4.65...*10^8,n= 8.65..*10^8

mean? I cannot input it to Maple.

@digerdiga

p:= ()-> p;

@digerdiga

p:= ()-> p;

I don't know what's wrong, but I'm sure that there's nothing wrong with your syntax. I can copy your procedure to a Maple execution group and it works. My advice is to use Worksheet mode rather than Document mode (this is an option that you get when you create a new worksheet).

@pzwp Could you give more details of what you would like for expand? It could probably be done easily. Note that you should probably be using Expand (with capital E) instead of expand in conjunction with mod.

@pzwp Could you give more details of what you would like for expand? It could probably be done easily. Note that you should probably be using Expand (with capital E) instead of expand in conjunction with mod.

@Markiyan Hirnyk 

All powers can be removed from an expression ex by evalindets(ex, `^`, x-> op(1,x)).

@Markiyan Hirnyk 

All powers can be removed from an expression ex by evalindets(ex, `^`, x-> op(1,x)).