Android apps by Lawrence D’Oliveiro

TI-58C/59 Calculator Emulator
Lawrence D’Oliveiro
Emulates a 1970s-vintage Texas Instruments TI-58/58C/59 calculator. Keystroke programmable, lets you load/save programs, includes partial implementation of original Master Library module. Source (on GitHub) includes tools for building your
Free
80
100,000+ downloads
|
PRODUCTIVITY
Infinirule Virtual Slide Rule
Lawrence D’Oliveiro
Infinirule is a virtual slide rule application for Android. It transcends the limitations of real physical slide rules by allowing variable precision--just keep zooming in to get more--and automatically wrapping scales around--like a circul
Free
86
5,000+ downloads
|
PRODUCTIVITY
Unicode Browser
Lawrence D’Oliveiro
Browse the Unicode character set, examining characters by category or by similarity; search for names containing specified substrings; save a list of favourites for quick reference. Also copy and paste text between this and other Android ap
Free
97
500+ downloads
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TOOLS
Porter-Duff Browser
Lawrence D’Oliveiro
Demo of using Porter-Duff transfer modes on a simple pair of sample images. For the rationale behind their definition, see the original 1984 paper by Porter & Duff here http://keithp.com/~keithp/porterduff/ Source code available here: http
Free
60
100+ downloads
|
LIBRARIES_DEMO
Screencalc screen calculator
Lawrence D’Oliveiro
Calculates display screen parameters: given any of width, height, diagonal, pixel density, total pixels, aspect ratio or optimum viewing distance, it will try to determine the rest. Useful for computer/smartphone/tablet screens as well as d
Free
90
100+ downloads
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TOOLS