Yang An@alanmilleranColumbia phd student mathUnited StatesFollow BadgesProblem SolvingCPPDays ofStatistics CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Python (Basic)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencealanmilleran has not updated employment details yet.Educationalanmilleran has not updated education details yet.