Sean Zhu (he, him, his) Graduate Assistant, TeachingGraduate Student, Mathematics Email: zhus@math.arizona.edu Office: MATH 622Office Hours (Spring 2023):Mon04:00 PM - 05:00 PMWed02:00 PM - 03:00 PMThu04:00 PM - 05:00 PMScheduled Courses (Spring 2023):MATH:120R - 014Mon03:00 PM - 04:00 PMTue03:00 PM - 04:00 PMWed03:00 PM - 04:00 PMThu03:00 PM - 04:00 PMFri03:00 PM - 04:00 PM