Final answer:
Documents that are both human-readable and machine-readable include formats such as PDF, HTML, XML, and Markdown, which are accessible and structured for easy processing by both humans and machines.
Step-by-step explanation:
A document that is both human-readable and machine-readable might include formats like PDFs, HTML, XML and Markdown files. These formats can be easily interpreted by humans, with clear text and visual formatting, and at the same time, they are structured in a way that machines can parse and process them. Specifically, PDF documents are widely used in both academic and professional settings because they preserve the visual formatting across different devices and platforms, making them easy for humans to read. Machines can also read PDFs, especially when the text is not included as an image but as selectable text layers.
Another example is HTML, which is designed to be displayed in web browsers, making the content accessible and readable by humans. Moreover, given its tagged structure, machines can readily access and manipulate the information. Similarly, XML files provide a structured data format with tags that make it both human-readable and machine-readable. Markdown files are also noteworthy for their simplicity and readability, while allowing conversion to HTML for machine processing.
When considering what medium to use for your content, it is important to keep in mind your audience and the purpose of the document, as well as how it may need to be used or processed in the future.