Math::Bacovia::Difference - Represents a symbolic difference.
use Math::Bacovia qw(Difference Symbol);
my $f = Difference(Symbol('a'), Symbol('b'));
my $g = Difference(Symbol('x'), Symbol('y'));
say (($f + $g)->pretty); #=> ((a + x) - (b + y))
This section describes the methods provided by the Math::Bacovia::Difference module.
my $obj = Math::Bacovia::Difference->new($minuend, $subtrahend);
Constructs and returns a new Math::Bacovia::Difference object.
my ($minuend, $subtrahend) = $obj->get;
Returns the internal values of the self-object.
$x + $y
Addition of x and y, using the identity:
(a-b) + (c-d) = (a+c) - (b+d)
$x - $y
Subtraction of y from x, using the identity:
(a-b) - (c-d) = (a+d) - (b+c)
$x * $y
Multiplication of x and y, using the identity:
(a-b) * (c-d) = (a*c + b*d) - (b*c + a*d)
Additive inverse of x, using the identity:
-(a-b) = b-a
$x == $y
Return a true value when x and y are symbolically equal.
This section describes the special methods provided by the Math::Bacovia::Difference module.
my @alt = $obj->alternatives;
my @alt = $obj->alternatives(full => 1);
This method uses common mathematical identities to create symbolically equivalent expressions from the self-expression.
my $str = $obj->pretty;
Returns a human-readable stringification of the self-expression.
my $str = $obj->stringify;
Returns a stringification of the self-expression.
my $num = $obj->numeric;
Evaluates the self-expression numerically and returns a Math::AnyNum object.
The other parts of Math::Bacovia:
Daniel Șuteu, <trizen at protonmail.com>
<trizen at protonmail.com>
Please report any bugs or feature requests to https://github.com/trizen/Math-Bacovia. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
You can find documentation for this module with the perldoc command.
You can also look for information at:
AnnoCPAN: Annotated CPAN documentation
Copyright 2017-2018 Daniel Șuteu.
This program is free software; you can redistribute it and/or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at:
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To install Math::Bacovia, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.