Good news. I found what happened.
When I copied the 2 lines from the answer here http://tex.stackexchange.com/questions/317293/tex4ht-corrupts-inside-cdata-in-the-html-file I seem to not have copied everything I need not shown, or missed a % For example,The second line that changed shown is this /def-(/string-/:scriptenv:breakhyphen/relax) But now I downloaded the official latex.4ht from https://www.tug.org/svn/texlive/trunk/ and used it, and now the problem went away. I see one difference is that the line in the source control has % at the end, like this: /def-(/string-/:scriptenv:breakhyphen/relax)% Any way, now I am using the official latex.4ht, from source control, and the math shows up again. Sorry about any confusion, and thanks again for Michal for this fix. Case closed. --Nasser On 6/30/2016 10:16 PM, Nasser M. Abbasi wrote:
Fyi, I just rebuild the document, using the original latex.4ht, and the math shows up. I kept the document which had no math show up (build using the fixed latex.4ht on-line also, to compare and renamed it: Here are the links (using original latex.4ht, math show ok) http://12000.org/my_notes/mma_matlab_control/KERNEL/KEse7.htm (using "fixed" latex.4ht, svg math do not show up) http://12000.org/my_notes/mma_matlab_control/KERNEL_no_math/KEse7.htm thanks --Nasser
