mathtype安装

https://www.cnblogs.com/ruanzhishe/p/18705747

https://blog.csdn.net/weixin_59684001/article/details/148338080?ops_request_misc=%257B%2522request%255Fid%2522%253A%25229f6fa118776a2688f4d674a547b3acc2%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=9f6fa118776a2688f4d674a547b3acc2&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2_alltop_positive~default-2-148338080-null-null.142^v102pc_search_result_base4&utm_term=mathtype7.4%E7%A0%B4%E8%A7%A3%E7%89%88%E4%B8%8B%E8%BD%BD&spm=1018.2226.3001.4187