How to use mathtype:
1. Let there be green.
run !)MathTypePortable.exe and click the left button “安装”.
give any require a "pass". wait 10 sec.
done, you could close the window now.
2. run the main executable MathType.exe. enjoy!
1. you could paste your latex equation text directly into MathType's window.
2. you could get the latex text by copying. (need to config Preferences -> Cut and Copy Preferences first).