Data Science Tutorials

Learn how Python’s None object represents the absence of a value. Discover its internal design, common use cases, best practices, and how it compares with null in other languages.

Learn how Claude Skills lets users and developers customize these portable, composable, and code-executable modules to enhance productivity across Claude apps and API integrations.

Test Qwen3-Max-Thinking, the world’s largest LLM, in reasoning mode. See how it stacks up against GPT-5 and Claude Sonnet 4.5 in logic, math, and code.

Hands-on tutorial to run Kimi K2 Thinking, build tool-calling workflows, view transparent reasoning, and benchmark against GPT-5 and Claude 4.5.

Discover how to create custom apps, automate repetitive tasks, and build intelligent agents using natural language in Microsoft 365 Copilot. This tutorial walks through App Builder, Workflows, and Copilot Studio with real examples you can implement today.

Learn how to use n8n Workflow Builder to automate your daily standups. Connect Google Calendar, summarize with AI, and create daily digests.

Learn proven ways to convert Excel to CSV, manually, programmatically, and in bulk, while maintaining data accuracy, encoding, and security.

Understand how Facebook Prophet models trends, seasonality, and special events for accurate and interpretable forecasts.

Understand how uncertainties in measurements affect calculated results and learn formulas and methods to quantify them across various mathematical operations.

Learn how UMAP simplifies high-dimensional data visualization with detailed explanations, practical use cases, and comparisons to other dimensionality reduction methods, including t-SNE and PCA.

Learn how to create this wonderfully compact and elegant cell-sized visualization in Excel that is perfect for summary trend and data visualization.

This guide explains the mathematical intuition behind the tanh function, how it compares to sigmoid and ReLU, its advantages and trade-offs, and how to implement it effectively in deep learning.