Trace Class Operators

Famous quotes containing the words trace and/or class:

“No trace of slavery ought to mix with the studies of the freeborn man.... No study, pursued under compulsion, remains rooted in the memory.”
—Plato (c. 427–347 B.C.)

“It is certain that every class is interested in [educational] establishments which give to the human mind its highest improvements, and to every Country its truest and most durable celebrity.”
—James Madison (1751–1836)