Prompt Engineering Lesson 4: Step-by-Step Reasoning and Checking
Get better answers on calculations and decisions: ask for steps, break big tasks into stages, have the model check its own work, and verify…
Read article →Atul Vij
Prompt Engineering Lesson 3: Examples and Templates (Few-Shot)
Prompt Engineering Lesson 3: Examples and Templates (Few-Shot)
Show, don’t tell: give the model one to five examples to copy tone, structure or classification rules, and build reusable prompt templates with placeholders.
Read article →Prompt Engineering Lesson 2: Clear Instructions — Role, Task, Context, Format
Prompt Engineering Lesson 2: Clear Instructions — Role, Task, Context, Format
Write prompts that work first time with the role-task-context-format pattern, constraints, audience and length, plus before/after examples for office tasks.
Read article →Prompt Engineering Lesson 1: How Chat AI Reads Your Prompt
Prompt Engineering Lesson 1: How Chat AI Reads Your Prompt
What happens when you send a prompt: tokens, context windows, next-word prediction, why wording matters, why answers vary, and what the model does and…
Read article →Why AI Chatbots Make Things Up (and 6 Ways to Catch It)
Why AI Chatbots Make Things Up (and 6 Ways to Catch It)
LLM "hallucinations" explained simply: why a next-token predictor can sound confident and still be wrong, and six practical habits to catch fabricated facts, formulas…
Read article →Run an LLM on Your Own Laptop with Ollama (Private, Free, Offline)
Run an LLM on Your Own Laptop with Ollama (Private, Free, Offline)
Install Ollama, run open models like Llama and Qwen locally, call them from Python and Excel-friendly scripts, and create a custom model with a…
Read article →AutoHotkey String Manipulation and Text Processing
AutoHotkey String Manipulation and Text Processing
Combine everything into one always-on script: text snippets, app launchers, Excel helpers, clipboard cleaners, a tray menu and start-with-Windows setup.
Read article →10 Useful AutoHotkey Scripts for Office Work (Copy and Use)
10 Useful AutoHotkey Scripts for Office Work (Copy and Use)
Ten ready-to-use AutoHotkey v2 scripts: text expansion for emails and GSTINs, today’s date, always-on-top windows, clipboard cleanup, Excel shortcuts, window snapping and more —…
Read article →LoRA Fine-Tuning Explained: Teach an LLM New Tricks on One GPU
LoRA Fine-Tuning Explained: Teach an LLM New Tricks on One GPU
How LoRA fine-tuning works, why it trains less than 1% of a model’s parameters, when fine-tuning beats prompting or RAG, and a minimal Hugging…
Read article →Build a RAG Chatbot That Answers From Your Own PDFs and Excel Files (Complete Guide)
Build a RAG Chatbot That Answers From Your Own PDFs and Excel Files (Complete Guide)
Step-by-step guide to retrieval-augmented generation in Python: load PDFs and Excel sheets, chunk them, create embeddings, search by meaning, and answer with a local…
Read article →REGEXTEST Function in Excel: Does Text Match a Pattern?
REGEXTEST Function in Excel: Does Text Match a Pattern?
REGEXTEST returns TRUE if text matches a regular expression — validate PAN numbers, emails or codes in one formula.
Read article →DETECTLANGUAGE Function in Excel: Which Language Is This?
DETECTLANGUAGE Function in Excel: Which Language Is This?
DETECTLANGUAGE returns the language code of a text — useful for sorting customer feedback before translating it.
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