Jean-François Burnol submitted an update to the
xint
package.
Version number: 1.1 2014/10/28
License type: lppl1.3
Summary description: Expandable operations on long numbers
Announcement text:
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xint 1.1 has some bug fixes, a few breaking changes, and many
extensions to xintexpr. See CHANGES.pdf or CHANGES.html for details.
The documentation has been completely revamped. The source code is
separately available as sourcexint.pdf.
Package xintcore is split-off from xint taking with it all the basic
arithmetic. This way, my other package bnumexpr has minimal overhead.
Neither xint nor xintfrac load xinttools anymore, only xintexpr does.
\xintthefloatexpr add(x^15,x=[1..10]/13)\relax
\xinttheiiexpr seq(seq(i^2+j^2, i=1..j),j=1..30)\relax % nesting
\xinttheexpr seq(x^2+x+1, x=1..10, 20..30, 40..50)\relax
\xinttheexpr 37*[15..[-2]..-13]^3\relax % itemwise operations
\xinttheexpr add(x^3, x = [89..120,150..200][15:-15])\relax % slicing
First Fibonacci number at least 2^64 and its index
\xinttheiiexpr iter(0,1; (@1>=2^64)?{break(i)}{@2+@1}, i=1++)\relax
Euclide Algorithm \newcommand\GCD [2]
{\xinttheiiexpr rrseq(#1,#2; (@1=0)?{abort}{@2/:@1}, i=1++)\relax }
One last: (ok, this one looks a bit scary).
\newcommand\Factors [1]{\xinttheiiexpr
subs(seq((i/:3=2)?{omit}{[L][i]},i=1..([L][0])), % [L][0]= # of items
L=rseq(#1;([@][1]<=1)?{abort}{(([@][1])/:p)?{omit}
{iter(([@][1])//p; (@/:p)?{break((@,p,e))}{@//p},e=1++)}},p=2++))\relax }
\Factors {41^4*59^2*29^3*13^5*17^8*29^2*59^4*37^6} produces
16246355912554185673266068721806243461403654781833, 13, 5, 17, 8, 29, 5,
37, 6, 41, 4, 59, 6
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This package is located at
http://mirror.ctan.org/macros/generic/xint/
More information is at
http://www.ctan.org/pkg/xint
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Please join a users group; see http://www.tug.org/usergroups.html .
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Thanks for the upload.
For the CTAN Team
Petra Rübe-Pugliese
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