CTAN Update: apnum
The new version 1.4 of the apnum package (arbitrary precision numbers implemented by TeX macros) from December 2015 includes many improvements. Especially the calculation of common functions (sqrt, exp, ln, sin, cos, tan, asin, acos, atan, pi) with arbitrary precision in the result has been implemented.
The package's Catalogue entry can be viewed at http://www.ctan.org/pkg/apnum The package's files themselves can be inspected at http://mirror.ctan.org/macros/generic/apnum/ 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 Petra Rübe-Pugliese
apnum – Arbitrary precision numbers implemented by TeX macros
The basic operations (addition, subtraction, multiplication, division, power to an integer) are implemented by TeX macros in this package. Operands may be numbers with arbitrary numbers of digits; scientific notation is allowed.
The expression scanner is also provided.
As of version 1.4 (December 2015) the calculation of common functions (sqrt, exp, ln, sin, cos, tan, asin, acos, atan, pi) with arbitrary precision in the result has been added.
Exhaustive documentation (including detailed TeXnical documentation) is included. The macro includes many optimizations and uses only TeX primitives (from classic TeX) and \newcount macro.