The City College of New YorkCCNY
Department of Mathematics
Division of Science

Contacting the Mathematics Department

Mathematics Department operations are being performed via a mix of principally in-person and some remote means.

The Math Department's main telephone lines, at (212) 650-5346 and 5347, are being answered Monday through Thursday by in office staff in the Marshak building, MR 529. Hours of operation for all days are from 9am - 5pm.

On Fridays, however, the staff sometimes operates remotely. As a result, calls to the department should then be directed to (347) 961-7667, which will generally be answered 9am-5pm.

Preferably, email your concerns and questions to math@ccny.cuny.edu, which is being monitored regularly.

Contacting Advisors and Program Administrators

For questions from students who are not mathematics majors or minors about mathematics courses, requirements, or concerning registration, please email the Math Dept at mathregistration@ccny.cuny.edu. If your question is about course registration, be sure to indicate your preferred sections for the course you are looking for, include your EMPLID and telephone number, and send mail from a CCNY email account making clear your major status and situation.

Undergraduate majors are advised by departmental faculty members, assigned for each student. See our Administrators page for information about whom to contact if you are Mathematics major or minor, or interested in becoming one.

The Administrators page lists administrators and advisors in the department together with some information about how to contact our administrators. This page can also be reached by clicking “Administation” on the menu at left.

Professor Chinta is the Graduate Chair of the Mathematics Master's program. It is best for questions about the graduate program to go to mathgradchair@ccny.cuny.edu.

Contacting instructors

Information about individual instructors is available on our People page.

Website

For issues related to this website please write to mathweb@ccny.cuny.edu.

Meet the Platonic Solids: Tetrahedron

The tetrahedron

The Platonic solids have been known since antiquity, and they play a prominent role in Plato's description of the physical world. The planar faces of each solid are identical polygons. Only equilateral triangles, squares and regular pentagons appear.

Although the platonic solids seem to be purely geometric objects, they embody a number of deep algebraic features. Their symmetries, for example, relate to the solution of polynomial equations of low degree.

If you would like to learn more about Platonic solids, you can start here.

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