Free42 (Android) 1.5.4

Free42 is a complete re-implementation of the HP-42S calculator and the HP-82240 printer. Free42 was written from scratch, without using any HP code. You do not need any ROM images in order to use it, yet it is fully HP-42S compatible. What's New in This Release: · Fixed ACOS: it used to return 0 for acos(-1). That bug was introduced in version 1.5.3