3.1 Structure

Computers rely on structural integrity to process maths:

• PDF, print, handwriting and E-books using images of maths cannot be processed. They are inaccessible and inflexible on, for instance, small screen devices. They are lossy formats for maths!
• Word, HTML based formats and EPub3 have structural integrity for maths and are accessible to many assistive technologies
• But not all AT can access maths all formats! PowerPoint 365 is theoretically accessible but most AT won’t work with it
• And most mathematicians use specialist scientific document preparation systems such as LaTeX, which, historically, have not output these formats