MATHSPEAK lecture by Nemeth (reposted by Rochester Institute of Technology) -- Dr. Abraham Nemeth, blind math professor, summarizes how to verbalize math formulas clearly and unequivocally. Useful if a formula appears as an image in a document, and one needs to manually add a verbal description of the formula as alt-text.
MATHSPEAK_Nemeth_code_spoken.docx -- same content as RIT website above, saved in Word document.
Math and Images page, National Center for Accessible Instructional Materials