LaTeX equations can now be added in any text field in Canvas -- including in title fields, for example -- and will be typeset and processed by MathJax. Previously, LaTeX could only be added via a tool in the Rich Content Editor (which has been retained), and only in the body of a course page.
Text fields support MathJax delimiters to identify equations.
For more details, see the release notes here: Release notes.
See also: Announcement