MathType 6.9, originally released by Design Science, was a widely used equation editor for Microsoft Office, known for its deep integration with Word and PowerPoint October 1, 2023 , Wiris (the current owner) has officially deprecated MathType 6.x docs.wiris.com The Status of MathType 6.9 and "Free Downloads"
MathType 6.9: A Powerful Equation Editor for Students and Professionals mathtype 6.9 product key free download
to access the full feature set. After 30 days, the software reverts to a limited unless a valid key is entered. Activation Rules MathType 6