@Carl Love in a case (1+... ) > 1 the supremum is Infinity. 

@Preben Alsholm But definitely answer "0" is not a right response for unrestricted case!!!

More sophisticated answer by MMA:

Maximize::natt: The maximum is not attained at any point satisfying the given constraints. 

Another bug from many, many ... others :(

Is there any serious reason to trust any of Maple's results?

Maple needs to be a reliable tool for symbolic math, not a bug-finding quiz...

@Christopher2222 same problem on the Ubuntu 22.04 and Linux Mint 21.1 Cinnamon desktop

@Carl Love This sentence in particular is very telling:

"However, for you to call it abuse is abusive, and the only reason that I'm not even more annoyed by your Question is that perhaps you thought that this was an official customer-support channel rather than a public forum. If you show disrespect to acer again, I'll delete it."

Nobody here shows any kind of disrespect!

@Scot Gould I can confirm that! Maple web-based help is outdated since 2021?! 

@tomleslie Or I can flip through the printed version of the manual, right?

@Christopher2222 

"I find it hard to believe that the online help pages could have gone through all of 2022 without being updated." 

I can't believe it either!!!

@Christopher2222 Same situation on Windows ...

The exactly same problem on Maple 2023 (Linux)...!!??

Looks like the @acer is not in a good mood lately :)

MaplePrimes is actually a community forum (with minimal ties to Maplesoft support) and some highly reputed people can do whatever they want. The only option is to contact the official Maple support directly. This problem is common on almost all community forums ... unfortunately this is a common practice!?

@Mariusz Iwaniuk Simply, bacause I want to know how Maple compares with Mathematica on this topic. 

@Christopher2222 The same problem with on-line Maple help WWW pages!!!??? Still version 2021 🤣 See here. 

Is that normal??? 

@Jeremy

Are you using Intel MKL library as a separete Intel product? Or, are you using R? Or, any other SW using MKL library for numerical computation speed up? 

MKL_INTERFACE_LAYER=LP64,GNU

is sometime used in these cases, where is required compatibility of the third-party SW developed (compiled) with GNU development tools (in this case fortran GNU compiler) which is using MKL as an external solvers library.

Anyway, your problem is solved. You should be happy now :) (Joke) 

@Jeremy Teitelbaum

This is really strange behavior?! Your HW config looks like pretty standard.

But, the ~/maple2022/bin.X86_64_LINUX/libmkl_gf_lp64.so is not a part of installed libraries for Maple2022!!!

Try to fully uninstall (via /home/jet08013/maple2022/maple2022/uninstall/uninstall + rm -rf /home/jet08013/maple2022/maple2022/,  rm -rf ~/.maple, rm -rf ~/.maplesoft) and then again install Maple 2022.

And finally, put to the end of your ~/.bashrc file the following lines:

### Maple R2022.x:
PATH=/home/jet08013/maple2022/bin:$PATH
export PATH

open terminal by CTRL+ALT+T and type:

$ xmaple

Additional remark: The library libmkl_gf_lp64.so is a part of INTEL MKL library and is used by Anaconda Python, too. Did you make some very specific library path configuration on your system? But it is definitely not a part of Maple2022 installation, so the Maple2022 should not call this library!!!