Teaching and Learning the Trigonometric Functions through Their Origins: About the Author

Daniel E. Otero (Danny, to mostly everyone) is Associate Professor of Mathematics at Xavier University in Cincinnati, Ohio, where he has been on the faculty since 1989. A member of the MAA for over 40 years, he is currently Past Chair of the SIGMAA for History of Mathematics (HOM SIGMAA) and Section Representative to the MAA Congress for the Ohio Section. Trained as an algebraist and number theorist, Danny has been a student of the history of mathematics and an unabashed humanist since his school days and has devoted much of his scholarship to the use of history in the teaching of college level mathematics. He and Daniel J. Curtin (Northern Kentucky University) have co-organized the ORESME (Ohio River Early Sources in Mathematical Exposition) Reading Group since 1998; the group meets twice a year in the Cincinnati area to read influential texts drawn from the mathematics literature of long ago. Since 2015, he has been one of the seven Principal Investigators for the TRIUMPHS collaborative.