Hans L on Wed, 04 Mar 2020 21:30:10 +0100


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Re: Not a function in function call


Not sure if this is any relation, but I'm seeing the same error on a
much simpler test case:

? ?Str
Str({x}*): concatenates its (string) argument into a single string.

? Str(1,2,3,4)
%1 = "1234"

? ?call
call(f, A): A being a vector, evaluates f(A[1],...,A[#A]).

? call(Str, [1,2,3,4])
  ***   at top-level: call(Str,[1,2,3,4])
  ***                 ^-------------------
  *** call: not a function in function call
  ***   Break loop: type 'break' to go back to GP prompt

I would expect this to return the same as Str(1,2,3,4)
Is this a bug or is there some nuance to using "call" that I'm not
understanding?

I get this error in gp 2.9.4 from ubuntu repos, and also 2.12.0
(alpha) , which built from source on Aug 17 2019.

Thanks,
Hans


On Tue, Jan 28, 2020 at 7:57 AM Bill Allombert
<Bill.Allombert@math.u-bordeaux.fr> wrote:
>
> On Tue, Jan 28, 2020 at 11:31:52AM +0000, Predrag Terzic wrote:
> > But, this one doesn't :
> >
> > n=22;
> > prevprime(k)={p=1;while(p<k,r=p;p=nextprime(p+1));return(r);}
> > compositorial(n)={c=10;l=[];forcomposite(i=1,n,c=c*i;l=concat(l,[c-prevprime(c-1)]));return(l);}
>
> Why not use the GP function precprime instead of prevprime ?
>
> > How to fix this problem?
>
> I assume prevprime take too much time.
>
> Cheers,
> Bill
>