I am a user of Zoho Projects and would like to create a Page with math expressions. In particular, I used the Equation Editor, tried a sample equation in several browsers, but always get the error message 'invalid LaTeX expression'. 

I noticed that this problem has been reported in Zoho Writer several years ago and it seems to have been fixed. You could maybe refer to this post https://help.zoho.com/portal/en/community/topic/equation-editor-problems.

In fact I am quite happy to have discovered the possibility of math editing on Zoho and would like to thank you for your efforts and support :)

Kind regards,

X. Liu