Re: How do i get multiple Min() values?

On 2024-07-12, HenHanna <HenHanna@devnull.tb> wrote:

 
How do i get multiple Min() values?
 
           e.g.      for   Y = (x-2)*(x-3)   for x in range(-10,10)
                                    the min Y is hit twice
 
 
print(  min( ((x-2)*(x-3),  (x, (x-2, x-3)))
                                            for x in range(-10,10) ) )
 
 
 
is this easy in Scheme(Gauche) ?

>
>
if the   Min()   is going to check all of the Candidate values,
     it could (at least) tell us  how many times the Min value was seen!

I decided to add something like this to TXR Lisp.

It will appear in 296.

This is the TXR Lisp interactive listener of TXR 295.
Quit with :quit or Ctrl-D on an empty line. Ctrl-X ? for cheatsheet.
When transferring between containers, do not siphon TXR by mouth.
1> (find-mins -10..11 : [callf * pppred ppred])
(2 3)
2> (find-mins (vec-seq -10..11) : [callf * pppred ppred])
#(2 3)
3> (find-mins "abracadabra")
"aaaaa"
4> (find-maxes "abracacabra")
"rr"

I works with any less-like function, assuming equality
when it’s neither true that x is less than y, nor that
y is less than x.
--
TXR Programming Language: http://nongnu.org/txr
Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal
Mastodon: @Kazinator@mstdn.ca