Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.
It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.
Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.
All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.

From version Free42 3.0.16:

SOLVE does a better job of reporting Sign Reversal when a function changes sign around a vertical asymptote, instead of reporting it as a root.

BASE: complex numbers displayed in non-decimal bases in some cases.

Better OCTM handling in SHOW.

Fixed number entry in PRGM mode when BINM/OCTM/HEXM active.

No longer setting flag 22 if number entry ends with DROP in NSTK mode.

Added WIDTH and HEIGHT to CATALOG->MISC; moved A...F from CATALOG->MISC to CATALOG->BASE.

Variant
Arch
Version
DPI
All versions
Free42 3.0.16
October 29, 2022

Version:3.0.16

Uploaded:October 29, 2022 at 4:00PM UTC

File size:7.34 MB

Downloads:13

Free42 3.0.15
October 1, 2022

Version:3.0.15

Uploaded:October 1, 2022 at 3:20PM UTC

File size:7.46 MB

Downloads:9

Free42 3.0.14
August 13, 2022

Version:3.0.14

Uploaded:August 13, 2022 at 9:55PM UTC

File size:7.34 MB

Downloads:16

Free42 3.0.13
June 16, 2022

Version:3.0.13

Uploaded:June 16, 2022 at 11:54AM UTC

File size:7.34 MB

Downloads:10

Free42 3.0.12
June 14, 2022

Version:3.0.12

Uploaded:June 14, 2022 at 12:37PM UTC

File size:7.34 MB

Downloads:11

Free42 3.0.11
May 1, 2022

Version:3.0.11

Uploaded:May 1, 2022 at 2:39PM UTC

File size:7.35 MB

Downloads:34

Free42 3.0.10
January 27, 2022

Version:3.0.10

Uploaded:January 27, 2022 at 6:41PM UTC

File size:7.33 MB

Downloads:20

Free42 3.0.9
December 26, 2021

Version:3.0.9

Uploaded:December 26, 2021 at 11:52AM UTC

File size:7.33 MB

Downloads:33

Free42 3.0.8
December 23, 2021

Version:3.0.8

Uploaded:December 23, 2021 at 4:55PM UTC

File size:7.33 MB

Downloads:17

Free42 3.0.7
November 7, 2021

Version:3.0.7

Uploaded:November 7, 2021 at 12:02PM UTC

File size:7.33 MB

Downloads:19