Math::Symbolic::Custom::ToShorterString
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Provides "to_shorter_infix_string()" through the Math::Symbolic module extension class. "to_shorter_infix_string()" attempts to provide a string representation of a Math::Symbolic tree that is shorter than the existing (infix) "to_string()" method.
The "to_string()" method wraps every branch in parentheses/brackets, which makes larger expressions difficult to read. "to_shorter_infix_string()" tries to determine whether parentheses are required and omits them. One of the goals of this module is that the output string should parse to a Math::Symbolic tree that is (at least numerically) equivalent to the original expression - even if the resulting Math::Symbolic tree might not be completely identical to the original (for that, use "to_string()"). Where appropriate, it produces strings containing the Math::Symbolic parser aliases "sqrt()" and "exp()".
The "to_shorter_infix_string()" does not replace the "to_string()" method, it has to be called explicitly. E.g.:-
use Math::Symbolic qw(:all);
use Math::Symbolic::Custom::ToShorterString;
my $f = parse_from_string("1*2+3*4+5*sqrt(x+y+z)");
print "to_string():\t", $f->to_string(), "\n";
# to_string(): ((1 * 2) + (3 * 4)) + (5 * (((x + y) + z) ^ 0.5))
print "to_shorter_infix_string():\t", $f->to_shorter_infix_string(), "\n";
# to_shorter_infix_string(): (1*2 + 3*4) + (5*sqrt(x + y + z))
TODO
Still very early, needs more work on detecting if the brackets are necessary for the sub-expression.
INSTALLATION
To install this module, run the following commands:
perl Makefile.PL
make
make test
make install
SUPPORT AND DOCUMENTATION
After installing, you can find documentation for this module with the
perldoc command.
perldoc Math::Symbolic::Custom::ToShorterString
You can also look for information at:
RT, CPAN's request tracker (report bugs here)
https://rt.cpan.org/NoAuth/Bugs.html?Dist=Math-Symbolic-Custom-ToShorterString
CPAN Ratings
https://cpanratings.perl.org/d/Math-Symbolic-Custom-ToShorterString
Search CPAN
https://metacpan.org/release/Math-Symbolic-Custom-ToShorterString
LICENSE AND COPYRIGHT
This software is copyright (c) 2024 by Matt Johnson.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.