Plus42
by Thomas Okken
HP-42S Compatible RPN Calculator with Large Display and Equations
| App Name | Plus42 |
|---|---|
| Developer | Thomas Okken |
| Category | Tools |
| Download Size | 9 MB |
| Latest Version | 1.2.7 |
| Average Rating | 4.97 |
| Rating Count | 133 |
| Google Play | Download |
| AppBrain | Download Plus42 Android app |
Plus42 is an advanced scientific programmable calculator, based on Free42. Free42, in turn, is a complete re-implementation of the HP-42S scientific programmable RPN calculator, which was made from 1988 until 1995 by Hewlett-Packard. Free42 is a complete rewrite and contains no HP code whatsoever.
Plus42 builds on Free42 and adds: Algebraic expressions modeled after those used on the HP-27S and HP-17B/19B; attached units and unit conversions modeled after those used on the HP-48/49/50 series; directories for more organized storage of programs and variables; a larger display, with 8 rows and 22 columns (131x64 pixels) by default, which the user may resize at will; time value of money and amortization schedules; and two-dimensional plotting of functions, with ability to zoom and pan, and find integrals and roots from points in the plot.
Recent changes:
Fixed crash in RCOMPLX/PCOMPLX when the stack is empty (NSTK mode).
More accurate integer powers of complex numbers. Specifically: special cases for pure real, pure imaginary, and numbers of the form a+ai and a-ai.
Fixed VIEW for long values.
Added XSTR option for EQN→STO→X and EQN→STO→PRGM.
Plus42 builds on Free42 and adds: Algebraic expressions modeled after those used on the HP-27S and HP-17B/19B; attached units and unit conversions modeled after those used on the HP-48/49/50 series; directories for more organized storage of programs and variables; a larger display, with 8 rows and 22 columns (131x64 pixels) by default, which the user may resize at will; time value of money and amortization schedules; and two-dimensional plotting of functions, with ability to zoom and pan, and find integrals and roots from points in the plot.
Recent changes:
Fixed crash in RCOMPLX/PCOMPLX when the stack is empty (NSTK mode).
More accurate integer powers of complex numbers. Specifically: special cases for pure real, pure imaginary, and numbers of the form a+ai and a-ai.
Fixed VIEW for long values.
Added XSTR option for EQN→STO→X and EQN→STO→PRGM.
