mathtype的搜索结果_百度图片搜索https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=mathtype&step_word=&hs=0&pn=14&spn=0&di=113300&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=1772438849%2C3304960831&os=2812982568%2C1132140938&simid=1772438849%2C3304960831&adpicid=0&lpn=0&ln=1004&fr=&fmq=1634991641122_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined©right=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fd22blwhp6neszm.cloudfront.net%2F23%2F225298%2Fosxlg.png%26refer%3Dhttp%3A%2F%2Fd22blwhp6neszm.cloudfront.net%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Djpeg%3Fsec%3D1637583642%26t%3D77e801c6ed2d5bccf9501c5582ad279a&fromurl=ippr_z2C%24qAzdH3FAzdH3F4wpipyrj_z%26e3Bf5upnd_z%26e3Bv54AzdH3F%3F6js%3Dk6jw1v674k&gsm=f&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined&dyTabStr=MCw2LDMsMiwxLDQsNSw3LDgsOQ%3D%3D
这个西格玛，不知道为何就是无法识别
毕竟是OCR，免不了偶有错误。可切换识别引擎试试。
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