```
Revision history for Math-Utils
1.14
10 Apr 2020
- Add the function softmax(). Currently in the :utility tag
group, which may be too generic. We'll see what else gets
added later and adjust the tagging then.
- New functions uniform_scaling(), and uniform_01scaling(),
contributed by Gene Boggs (GENE).
- Typo found by Miguel Prz (NICEPERL) fixed.
1.13
30 Oct 2018
- Add function pl_translate(), by request.
- Turn README into README.md. With MetaCPAN replacing CPAN,
there is no reason to have a plain-text README anymore
(MetaCPAN doesn't treat the file as special).
- Add a CONTRIBUTING.md file, which is becoming a thing.
- New test file for pl_translate(), and upgrade test files
that for some reason were still using Test::Simple to Test::More.
- Added an :all tag. Why not.
1.12
26 Jun 2018
- Typo found by Florian Schlichting fixed.
- Add gcd() and lcm() functions.
- New example scripts (a couple transferred over from
Math::Polynomial::Solve) in the new eg/ directory.
1.11
11 Aug 2017
- Stupidly depended on Module::Start's boilerplate text for the
license, which points to a differently worded license text
from what I've got in the LICENSE file. Changed that.
1.10
10 May 2017
- Extended pl_evaluate() to allow lists of values for the X terms.
Lists may be of values or of ARRAY refs.
- Added tests in 16-evaluate.t for the list cases.
1.09
11 May 2016
- New function fsum(), using Kahan's summation algorithm.
- Added tests in 17-derivative-eval.t to check for the
linear polynomial and the constant-only polynomial.
(They passed, but until now those cases hadn't been tested.)
- Extend the documentation for pl_div(), emphasizing the
need to remove leading zeros.
1.08
24 Feb 2016
- Inlined the comparison functions of generate_relational().
- Default tolerance was just under square root of (an) epsilon,
changed to to just over.
- Updated 01-compare.t to test edge cases.
- Added a log2() function, because why not.
1.07
23 Nov 2015
- Search using grep.cpan.me indicated that floor() and ceil()
functions weren't defined in general-purpose modules (and
the modules they were in were pretty heavy-weight). Decided
to add them to the module.
- Repeated modulus of a number was worth making into
utility function moduli().
1.06
7 Oct 2015
- The if statements were laid out in generate_fltcmp in
a way that could return a -1 (less than) when the two
values were actually equal within tolerance. Changed this.
- Renamed some test files so that the compare test comes
first.
1.05
25 Sep 2015
- Bug in pl_derivative() for linear equation case.
- Added test cases to cover it.
1.04
20 Sep 2015
- I had bumped the version number everywhere but in the module
itself. This will probably complicate something, so
fix this everywhere with a version 1.04.
- Add a flipsign() function to the :utility list.
- More documention clean-up. Mention Math::VecStat
in the SEE ALSO.
1.03
18 Sep 2015
- Put :fortran tagged functions copysign() and log10()
in the :utility tagging. The :fortran tag sticks around
though.
- New function pl_dxevaluate() for returning the y, dy,
d2y values of the polynomial at x.
- New test files for pl_evaluate() and pl_dxevaluate().
1.02
15 Sep 2015
- Documentation error in pl_div() (mis-named variables
in the example).
- Extended the SEE ALSO paragraph.
- Very minor code clean-up in pl_antiderivative().
1.01
5 Sep 2015
- I had left test file 15-objcoeff.t off the MANIFEST list. Oops.
- Embarrassing number of grammatical and spelling errors fixed.
- Clarified a couple of examples, and extended the
pl_antiderivative() documentation with respect to the
constant term.
- Version bump; up to CPAN.
1.00
3 Sep 2015
- Added the coefficient list functions for addition, subtraction,
division, multiplication, derivative, antiderivative,
and evaluation (via Horner's method) of polynomials without
actually creating a polynomial object.
- Added the tests for the above operations.
0.02
30 Aug 2015
- CPAN testers caught a 5.10ism in the module, which is
listed as okay for version 5.8. Decided to bump the
minimum version requirement to 5.10.1.
- Documentation was sketchy, so added more descriptive
text and examples.
- Version bump; up to CPAN.
0.01
18 Aug 2015
- Collection of utility functions for Math modules, starting
with the functions of Math-Fortran as a base.
```