Data Science Tutorials

Explore simple formulas, modern Excel functions, and newer AI tools to count words in Excel.

Learn how to build clear and accurate waterfall charts in Excel using both built-in tools and manual methods. Explore useful variations such as stacked, dynamic, and vertical layouts.

Learn step-by-step methods to remove leading zeros from both numeric and text values in Excel.

Discover how to use Claude Code Router to connect to multiple providers, use the optimal LLM for every task, and reduce API cost without changing your workflow.

A practical introduction to differential equations covering core types, classification, analytical and numerical solution methods, and their real-world role in gradient descent, regression, and time series modeling.

Learn how to use the Google Sheets AI() function to summarize, categorize, and rewrite text in cells. Discover when it works best and where it falls short.

Build an end-to-end vector search app with FastAPI and MongoDB Atlas. Learn to generate, store, and query text and image embeddings in this hands-on tutorial.

Learn how to use Inception Labs’ Mercury 2 diffusion-based reasoning LLM to build a latency-aware research agent that can expand queries, search the web, synthesize a source-grounded answer, and run a verification pass.

Learn exactly how to run Claude Code in Docker to build isolated environments. Master secure coding practices for autonomous AI agents in this complete guide.

A step-by-step guide to cofactor expansion (Laplace expansion), covering the core definitions, worked examples, key properties, and its connection to matrix inversion via the adjugate matrix.

This guide walks you through safe, formula-based approaches and visual merge options to help you format your worksheets without breaking your data.

Make large datasets easier to read with alternating row colors in just a few clicks.