Hm. I misunderstood your question, thinking that the digits compose concrete numbers
instead of symbols. Well, I think that BrowserUk has already provided a
solution that probably suits your problem better than a generic Perl module
for symbolic algebra. If you are still interested in such a module you could search
CPAN for symbolic and/or algebra or perform a Super Search.
This also sounds interesting: recommendations on scientific computing with Perl.
Maximum string size in Perl: AFIK, its only limited by your OS (e.g. 32bit/64bit) and your
hardware (memory, disk). Experimentally, my Perl 5.8.4 on a 64bit Solaris 10 box (8GB) was
able to create a string of at least 3945 MB (1MB = 1024 x 1024) before out-of-memory occurred.
Right, the equation got truncated. If you like, please surround your sample equation with <readmore>...</readmore> tags - although it won't fix the truncation effect, it
will make this thread more readable.
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