HotPaw Basic1.8.1

Calling all early-personal-computing fans, remember typing Basic programs into your home computer? HotPaw Basic recreates the retro-experience of a text-mode Basic interpreter, and it runs right on your iPhone or iPad.

You can also use HotPaw Basic as a programmable calculator, or for displaying simple line graphics.

The HotPaw Basic interpreter supports the minimal Basic language, including:
Commands:
let if then else endif dim data read restore
for to step next while wend goto gosub return
? print input open close end stop mat
run new list del save load dir cls rem
Functions:
int() abs() sgn() rnd()
sqr() exp() log() log10() sin() cos() tan() atn()
len() val() asc() str$() chr$() hex$() mid$()
timer() date$ time$ pi
Operators:
+ - * / mod ^ = and or xor not

Also includes new command and functions to support line graphics, Morse Code audio, FFT analysis, GPS location, MQTT and BTLE communications.

Line numbers are required. Type in the text of your program and type "run" to run them.

See: http://www.hotpaw.com/rhn/basic/iphone/ for a more complete description of the Basic language syntax, commands and functions which this Basic interpreter supports.

Version History Bug fixes and stability enhancements.
Improved Morse Code audio. 1.8.1 03/25/2025 Updated to better support newer iOS devices 1.7.9 10/28/2021 Updated for iOS 11 and the iPhone X.
Improved support for Larger Text (as set in Accessibility Settings).
Basic programs can now be downloaded to HotPaw Basic using iTunes File Sharing, or via the iOS 11 Files app.
The graphics drawing area is now limited to 80% of full screen.
This update includes bug fixes for entering quote marks, and for an occasionally missing "Stop" button to break program execution. 1.7.7 12/22/2017 Improved some of the built-in audio/sound functions.
Bug fixes. 1.7.4 09/14/2015 Fix for a bug causing the app to crash under iOS 6. 1.7.3 04/24/2015 Bug fix for AirPrint printing.
Bug fixes for built-in Core Bluetooth functions. 1.7.2 04/14/2015 - Added some built-in functions for light-weight messaging using the MQTT protocol.
- Added functions for accessing Bluetooth LE/4.0 IoT devices, including monitoring for one Core Bluetooth notification in the background.
- Added some LightBlue Bean support.
- Also includes several bug fixes, including one bug fix for better OS 6 print support. 1.7.1 03/23/2015 Bug fixes for running on older iOS 6 and 32-bit devices.
The previous version 1.6.8 added iOS 8 and iPhone 6 and 6 Plus support. 1.6.9 02/26/2015 Added support for iOS 8, iPhone 6, 6 Plus and 64-bit devices.
Also includes minor bug fixes. 1.6.8 02/11/2015 Updated and bug fixes for iOS 7. 1.6.2 10/04/2013 Added the fn say() command to produce synthesized speech.
Added HTTP to open/input file commands to allow accessing web site data.
Bug fixes. 1.6.1 04/20/2013 Enhanced support for iOS 6 and the iPhone 5.
Better full screen support when using a Bluetooth keyboard.
Added support for International/unicode strings.
Increased the maximum graphics window size.
Added half-pixel width line drawing for Retina devices.
Added the graphics text and graphics oval commands. 1.5.9 09/29/2012 Fixed built-in Info/Help documentation and fn location() documentation on iPad.
New in previous Version 1.5.5:
Added functions for reading accelerometer, location and audio input.
Added a new program text edit mode.
Added a graphics circle command.
Fixed a matrix scaling bug. 1.5.6 01/07/2012 Added functions for reading accelerometer and location.
Added a function to read mic audio input into an array.
Added a new edit mode.
Added a graphics circle command.
Fixed a matrix scaling bug. 1.5.5 12/15/2011 Added the mat read command.
Fixed mat command for matrix multiply.
Fixed a print tab() bug.
Modified the "Ready" prompt to be less intrusive. 1.5.3 03/23/2011 HotPaw Basic is now a Universal App with iPad support.
AirPrint (to "lpt1:") enabled on iOS 4.2 devices. 1.5.0 12/15/2010 1.0.4 09/29/2010