This article clarifies six often-confused AI tool concepts: Prompt handles temporary conversation instructions, Skills preserve standard workflows, MCP exposes external tools, Commands create shortcut templates, Agent runs autonomous loops, and Subagent isolates parallel tasks. It compares definitions, use cases, engineering cost, reuse, and decision criteria based on Anthropic documentation and LangChain-style agent concepts.
A practical OriginPro tutorial for recreating a polished 3D scatter plot. Even with only 2D plotting basics, you can bind category shapes, add Z-axis drop lines and XY/ZX projections, overlay ellipse backgrounds, and generate a clean legend with Ctrl+L. Project files are included.
Do lines overlap during data reporting? OriginPro’s Z-axis can upgrade 2D charts into 3D views. This article explains three common scenarios, waterfall plots, grouped bar charts, and surface plots, with project files and practical steps so complex data relationships become clearer and decisions become faster.
Want to send a letter in China but worry about postage or envelope formatting? This guide explains stationery and weight, envelope requirements, where to buy stamps, the difference between ordinary and registered mail, China Post postage by weight, how to write and stamp an envelope, how to check postage and postal codes through WePost Office, and roughly how long local, intercity, and interprovincial letters take.
This article combines AI self-improvement with practical AI prompts and collects six deep self-questioning frameworks suitable for AI products with global memory: a brutal life-truth scanner, HUMAN 3.0 evaluation, ruthless debate partner, letter-writing decompression, legends versus ordinary people questions, and using AI to kill procrastination. It helps you use AI to see yourself more clearly and upgrade your lifestyle.
Are LLM translation costs too high? This article tests the latest terminology-extraction feature in pdf2zh-next and compares Kimi K2 with DeepSeek V3/V3.2 in real use. It explains how a separated workflow and DeepSeek’s disk-cache mechanism can preserve academic terminology accuracy while sharply reducing token cost.
A 2025 one-stop collection of research and academic tools, featuring 106 productivity websites across 18 categories. It covers paper writing, literature access, academic search, color palettes and visualization, presentation templates, journal evaluation, DOI parsing, and more. The navigation is clearly categorized, saves search time, reduces useless detours, supports keyword search and mobile browsing, and will continue to be updated collaboratively.
A step-by-step Windows 11 C-drive cleanup guide, covering temporary files, Disk Cleanup, Storage Sense, and user-folder migration. It explains how to safely free C-drive space, the tradeoffs and rollback strategies for Windows.old and hiberfil.sys, and provides a reproducible eight-step plan with risk notes for beginners.
A complete guide to installing TeX Live and configuring LaTeX in VS Code, covering Windows, macOS, and Linux. It explains TeX Live and MacTeX downloads, mirror acceleration, Windows PATH repair with tlmgr, LaTeX Workshop setup, XeLaTeX Chinese output, SyncTeX preview, settings.json configuration, and verification steps.
