[GAP Forum] Inverse operation of ListOfDigits.

[Philippe Cara (Latitude)]

Dear Muniru,

Yes, it's easy:

gap> Sum([0..Length(b)-1], k -> b[Length(b)-k]*10^k);
123456

Best regards,					--Philippe

On 180329, "[Muniru Asiru] maasiru at yahoo.com" <maasiru at yahoo.com> wrote:

> Dear Forum, Dear all,
> 
> If I am given that
> a:=123456;;  b:=ListOfDigits(a);
> Is it possible in GAP for me to recover a given b?
> 
> Thanks.
> 
> Dr. Muniru A. Asiru, Department of Mathematics & Statistics, The
> Federal Polytechnic, P.M.B. 55, Bida, Niger State, Nigeria. OR Dr.
> Muniru A. Asiru, P.O.Box. 294, Bida, Niger State, Nigeria. Email
> Addresses: maasiru at yahoo.com,  remiasiru at yahoo.com, Mobile Phone
> number: +2348034271010
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