CTAN update: xint
Date: November 20, 2015 7:38:16 AM CET
Jean-François Burnol submitted an update to the
xint
package.
Version number: 1.2d 2015-11-18
License type: lppl1.3
Summary description: Expandable operations on long numbers
Announcement text:
- bugfix in xintcore: release 1.2c had inadvertently broken the \xintiiDivRound macro. - the function definitions done by \xintdeffunc et al., as well as the macro declarations by \xintNewExpr et al. now have only local scope. - tacit multiplication applies to more cases, for example (x+y)z, and always ties more than standard * infix operator, e.g. x/2y is like x/(2*y). Here is an example (which I forgot to include in the 1.2c announcement) combining the two items above: \xintdeffloatfunc rump(x,y):=333.75y^6+x^2(11x^2y^2-y^6-121y^4-2)+5.5y^8+x/2y; One can then evaluate \xintthefloatexpr rump(77617,33096)\relax, but will be suprprised by the result if not using at least 37 decimal digits of precision... Some documentation enhancements, particularly in the chapter on xintexpr.sty, and also in the code source comments.
This package is located at http://mirror.ctan.org/macros/generic/xint More information is at http://www.ctan.org/pkg/xint We are supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .
Thanks for the upload. For the CTAN Team Erik Braun
- bugfix in xintcore: release 1.2c had inadvertently broken the \xintiiDivRound macro. - the function definitions done by \xintdeffunc et al., as well as the macro declarations by \xintNewExpr et al. now have only local scope. - tacit multiplication applies to more cases, for example (x+y)z, and always ties more than standard * infix operator, e.g. x/2y is like x/(2*y). Here is an example (which I forgot to include in the 1.2c announcement) combining the two items above: \xintdeffloatfunc rump(x,y):=333.75y^6+x^2(11x^2y^2-y^6-121y^4-2)+5.5y^8+x/2y; One can then evaluate \xintthefloatexpr rump(77617,33096)\relax, but will be suprprised by the result if not using at least 37 decimal digits of precision... Some documentation enhancements, particularly in the chapter on xintexpr.sty, and also in the code source comments.
This package is located at http://mirror.ctan.org/macros/generic/xint More information is at http://www.ctan.org/pkg/xint We are supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .
Thanks for the upload. For the CTAN Team Erik Braun
xint – Expandable arbitrary precision floating point and integer operations
The xint bundle main modules are:
- xinttools
- utilities of independent interest such as expandable and non-expandable loops,
- xintcore
- expandable macros implementing addition, subtraction, multiplication, division, and powers for arbitrarily long integers,
- xint
- extension of xintcore,
- xintfrac
- extends the scope of xint to decimal numbers, to numbers using scientific notation and also to (exact) fractions,
- xintexpr
- provides expandable parsers of numeric expressions using the standard infix notations, parentheses, built-in functions, user definable functions and variables (and more ...) which do either exact evaluations (also with fractions) or floating point evaluations under a user chosen precision.
Further modules of the bundle are:
xintkernel (support macros for all the bundle constituents),
xintbinhex (conversion to and from hexadecimal and binary bases),
xintgcd (provides gcd() and lcm() functions to xintexpr),
xintseries (evaluates numerically partial sums of series and
power series with fractional coefficients), and
xintcfrac (dedicated to the computation and display of continued fractions).
All computations are compatible with expansion-only context.
The packages may be used with Plain TeX, LaTeX, or (a priori) any other macro format built upon TeX.
| Package | xint |
| Version | 1.4m 2022-06-10 |
| Copyright | 2013–2022 Jean-François Burnol |
| Maintainer | Jean-François Burnol |