Programming

chatgpt-reliable

Why ChatGPT Is Unreliable: Design Limits and Misconceptions

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138 Comments
ChatGPT's reliability I'll start with the simple fact: ChatGPT is not a reliable answerer to questions. Wolfram's explanation To try to explain why from…
pvsnp

P vs. NP and what is a Turing Machine (TM)?

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1 Comment
P or NP This article deals with the complexity of calculations and in particular the meaning of ##P\stackrel{?}{\neq}NP## Before we explain what P and…
cpu programming

Parallel Programming on a CPU with AVX-512

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This article is the second of a two-part series that presents two distinctly different approaches to parallel programming. In the two articles, I use different…
programming gpu

CUDA Regression Line: GPU Parallel Programming Guide

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Overview This article is the first of a two-part series that presents two distinctly different approaches to parallel programming. In the two articles,…
setup raspberry pi cluster

Raspberry Pi Cluster Guide: Parts, MPI & Slurm Tips

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INTRODUCTION As a long-time computer programmer and almost as long a High-Performance Computer (HPC) user, I didn't know anything about how these machines…
python sympy module

Python’s Sympy Module and the Cayley-Hamilton Theorem

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Two of my favorite areas of study are linear algebra and computer programming. In this article I combine these areas by using Python to confirm that a…
android ringtone

Android Ringtone Picker with RingtoneManager (Java)

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Android Ringtone Picker using RingtoneManager In article, I will show you how to create a ringtone picker using the RingtoneManager class in Android.…
c++ guide for beginners

Beginner C++ Tutorial — Compiler, Types & I/O Basics

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ContentsGetting a C++ Compiler and Compiling Your First Program Simple Datatypes and Declarations Operators and Expressions Input and Output…
android rooting

Android Rooting & Magisk Guide: Systemless Root Tips

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Android Rooting & Magisk Guide: Systemless Root Tips Overview What you can learn from this article:What is meant by rooting an Android phone …
bloatware android phones

Debloating Android Phones: Risks, Myths and Safe Tips

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What is bloatware? Stock firmware and preinstalled apps When you unbox a new phone, it comes with Android pre-installed by the manufacturer. This is…
recursion in programming

Recursion in Programming and When to Use or Not to Use It

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38 Comments
What is recursion? Recursion is quite simple. It's a subroutine calling itself. It's surprising but some problems that look quite hard can be trivial using…
AVX-512 Programming subtotals

AVX-512 Programming: Extracting Column Subtotals from a Table

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In this Insights article I'll present an example that shows how Intel® AVX-512 instructions can be used to read a whole row of data in a single operation,…
AVX-512 conclusion

AVX-512 Assembly Programming: Opmask Registers for Conditional Arithmetic Conclusion

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1 Comment
In the first part of this article (AVX-512 Assembly Programing - Opmask Registers for Conditional Arithmetic), we looked at how opmask registers can be…
AVX-512 registers

AVX-512 Assembly Programming: Opmask Registers for Conditional Arithmetic

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2 Comments
This is the second installment in a continuing series of articles on Intel AVX-512 assembly programming. The first installment is An Intro to AVX-512 Assembly…
AVX-512 Assembly Programming

An Intro to AVX-512 Assembly Programming

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History In 1998, the Intel Corporation released processors that supported SIMD (single instruction, multiple data) instructions, enabling processors to…
Data Structures Programming

Intro to Data Structures for Programming

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Introduction In the first part of this series, I talked about some fundamental notions in the world of algorithms. Beyond the definition of an algorithm,…
unity orbital mechanics

Simulating Orbital Mechanics in Unity for AR Apps

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Orbital mechanics can be simulated in the Unity game engine by replacing its built-in single-planet gravity with a custom force calculation applied to…
algorithms

Intro to Algorithms for Programming

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Many threads here at PF include some questions about how to learn to program. This is asked by Physics students who want to learn programming to help their…
processing

The Joy of Processing

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11 Comments
In the early days of the personal computer revolution, computers were small, simple, and easy to operate. It was always great fun to write BASIC games…
computerlanguages

Machine Code to IDEs: A Guide to Programming Language Types

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67 Comments
Computer languages fall into a small number of core types: machine language (raw binary instructions), assembly language (human-readable mnemonics for…
qualitycontrol

Hardware, Software, and C Programming Quality Tips

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On Hardware Quality Designing Quality vs Testing It is impossible to test quality into a product. Quality must be designed into the product. Production…
softwarenotperfect

Why Your Software is Never Perfect

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52 Comments
Introduction We occasionally have students ask for help on software, "My software is perfect, but it doesn't work!" Your software is never perfect. My…
computermath

Why Can’t My Computer Do Simple Arithmetic?

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46 Comments
The first computer I owned was an Apple IIe computer, with a CPU that ran at slightly over 1 Megahertz (MHz), and with 64 Kilobytes (KB) of RAM, together…
pythondebug2

Simple Python Debugging with Pdb: Part 2

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This Insight article is the continuation of the first article, Simple Python Debugging with Pdb: Part 1.In this article, let's look at another important…
pythondebug1a

Learn Simple Python Debugging with Pdb

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6 Comments
I'm pretty new to Python, so I was looking around for some debugging tools. At first, I dismissed Pdb (Python debugger) as being too primitive, but after…
matlab errors

5 Common MATLAB Error Messages and How to Fix Them

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4 Comments
MATLAB error messages like "Inner matrix dimensions must agree" or "Index exceeds matrix dimensions" almost always trace back to five common mistakes:…