# Page Not Found

The URL `basics/time-history/rectangular` does not exist.

You might be looking for one of these pages:
- [Rectangular](https://alpaca4d.gitbook.io/docs/basics/sections/rectangular.md)
- [Linear](https://alpaca4d.gitbook.io/docs/basics/time-history/linear.md)
- [Constant](https://alpaca4d.gitbook.io/docs/basics/time-history/constant.md)
- [Time History](https://alpaca4d.gitbook.io/docs/basics/time-history.md)
- [Trigonometric](https://alpaca4d.gitbook.io/docs/basics/time-history/trigonometric.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://alpaca4d.gitbook.io/docs/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://alpaca4d.gitbook.io/docs/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/docs/basics/sections/rectangular.md`)
- Use `Accept: text/markdown` header for content negotiation