出国留学英文介绍信出国留学英文介绍信篇1incapacityasprofessorofmathematicsatfudanuniversityi'mwritingtorecommendmr.wanggesintosyourphdprogramincomputerscience.ihaveknownmr.wangsincehissophomoreyearofcollegeandhaveactedashisthesisadvisorandmentor.inmyexperienceheisagiftedanddiligentstudentandanadmirablyhardworker.wangisanimpressivestudentbecausehehasbeenforcedtoovercomethesignificantchallengeofaseriousillnessduringhisfreshmanyear.whenifirstmetwanginmydiscretemathclasshedidnotappeartobeanythingspecialtome.whilehisexamscoresweregoodtheywerenotashighasiwouldnowexpectofhim.whatididn'tknowthenwasthatduetohisillnesswangwasattemptingtotakeallofthedifficultearlymathematicscoursesatonetimeincludingdiscretemathematicsadvancedmathematicslinearalgebraandpossibilities.whilemoststudentsfoundpreparingforjustonesetoftheseexamsdifficultwangwasoverwhelmedbyfourofthem.butintheendheachievedanimpressivescoreonthefinalexamwhichmademeconsciousofhisunusualdeterminationhedemonstrateswhenconfrontingdifficultchallenges.mr.wangandihaveoftentalkedaboutavarietyofmathematicsandcomputerscienceconceptsandproblems.duringthesediscussionsialwaysfoundhimtobedelightfullyintelligent.notonlydoeshequicklyunderstandtheconceptsandproblemspresentedtohimheisabletoanalyzetheseproblemsandpresentsolutions.butperhapsmostimportantisthatwang'sthinkingisintenselyrigorous.whenlookingatanyquestionhecarefullyscrutinizesitandifhefindsanyuncertainissuesheclearsthemupimmediately.ibelievethiskindofthoughtisessentialtobecomeanexcellentcomputerprogrammer.servingashisthesisadvisorihadafirst-handopportunitytoobservethewayinwhichwang'smindworks.inhissenorthesismr.wangmainlydiscussedtwochallengingquestionsinregardsto′ann′.inourbooksinchinaknowledgeofannanditsusesareveryrare.fewpeopleinchinahavestudiedthistopicandconsequentlythematerialsthatareavailableonannarelimited.workingonthisdifficultprojectnotonlydidmr.wangrisetothechallengebuthewentaboveandbeyondthecallofdutytoanalyzehissecondarysourcesandtestthemforaccuracyinpractice.inthiswayhefoundmistake