3 _ 2 ^ p gives 0
_3 2 ^ p gives 9
3 2 ^ _ p gives 0
5 _ p gives 0
_5 p gives -5
~ % dc -v
dc 6.5.0
Copyright (c) 2018-2023 Gavin D. Howard and contributors
Report bugs at: https://git.gavinhoward.com/gavin/bc
This is free software with ABSOLUTELY NO WARRANTY.
~ % dc
3 _ 2 ^ p
9
_3 2 ^ p
9
3 2 ^ _ p
-9
5 _ p
-5
_5 p
-5
(control-D)
dc -V
dc (GNU bc 1.07.1) 1.4.1
3 _ 2 ^ p
0My dc does have a few differences from the GNU dc. I added the extension of using _ as a negative sign.
That is why you are both seeing behavior differences.
You are correct about its behavior.
See https://git.gavinhoward.com/gavin/bc/src/branch/master/manua... (scroll down to the underscore command).