Animations needed to be present should also include a non-animated, text-based alternative that is accessible to screen readers. Avoid automatic or looped animations (i.e. GIFs) as they are distracting and could affect some users. Animations with a sound component should have captions or a text transcript.
Charts, flowcharts, graphs and maps use visuals to convey complex images to users. But since they are images, these media provide serious accessibility issues to colorblind users and users of screen readers. If the information is crucial, then you must provide a text description, outline or summary near the chart.
Long descriptions may be needed to properly describe content. It is recommended to include a short summary in the ALT Text which directs users to a long text description that fully explains the image.
Maps may be used to provide directions to a location, but make sure text based directions are also included. Note that text-based instructions benefits those who may have problems processing a particular map.
Math equations can be streamlined through equation editors or through the use of techniques for other complex image types or tables.