## 2210 Reputation

4 years, 267 days

## Functional operators/programming: Are ne...

Maple

I have doubts as to whether this is possible, but I would like to ask anyway.

For example, can

````*`(`+`(a, b), c);
c (a + b)

```

be written with composed procedures (`*`@`+`) and somehow grouped arguments (a,b) for `+` and (a+b,c) for `*`.

So far I have only come across composed procedures in parethesis applied to one expression in parenthesis.

Since the second pair of parenthesis does a function application to everything what is inside the parenthesis it seems impossible that the right most procedure is only applied to a sub-term of the expression first.

If the answer to my question is no, I want to aks a related question:

Is it possible to separate procedures calls from arguments? So, in a first part of a statement I have a sequence (or a list or a composed function) of procedures/operators and in the second part a sequence of arguments instead of a nested construct of procedure calls?

## Can this warning be truned off...

Maple

I tried

`interface(warnlevel=0); infolevel[all]:=0;prinlevel:=0;kernelopts('printlevel'=0);`

to suppress the warnings I get from this code

```restart;
f:=z^3;
z_map:=proc(f,re,im)
if((re>0) and (im>0) and (im<1-re))then
eval(f,z=re+I*im);
else
NULL;
end if;
end proc;
p_re:=plots:-display(seq(plot([Re('z_map(f,re,im)'),Im('z_map(f,re,im)'),im=0..1]),re=0..10,0.1)):
p_im:=plots:-display(seq(plot([Re('z_map(f,re,im)'),Im('z_map(f,re,im)'),re=0..1]),im=0..10,0.1),color=green):
plots:-display(p_re,p_im,scaling=constrained)
```

The reason for the warnings is clear. The input lines are too long to be plotted. However, the resulting plot is exactly what I intended. Programatically truncating the lines would make the warning disappear, but it would make the code much more complicated.

What else can be done to suppress this kind of warning.

## Why is – not rendered in an expo...

Maple 2023

It is &ndash; that is not rendered.

Maple 2023

For comparision Maple 2022.

Can someone reproduce this? Anything I can do about it (some settings maybe)?

Both session directly after restart of Maple.

## Why does indets not list _Z...

Maple

Just for my understanding

```x^ln(x)-c;
solve(%,x,allsolutions);
indets((%));
print("but here it does:");
indets(%[-1])
ln(x)
x      - c

/   ln(_Z)    \
RootOf\-_Z       + c/

/     ln(_Z)        /   ln(_Z)    \        \
{ c, _Z      , RootOf\-_Z       + c/, ln(_Z) }
\                                          /

"but here it does:"

{_Z, ln(_Z)}
```

## ColorTools: Is there an overview of impl...

Maple

I am a little overwhelmed by the possibilities of ColorTools.
Is there a graphical overview of implemented palettes side by side?

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