Exponential Trace
Expressions like exp(tr(A)), where A is a square matrix, occur so often in some fields (e.g. multivariate statistical theory), that a shorthand notation has become common:
This is sometimes referred to as the exponential trace function; it is used in the Golden Thompson inequality.
Read more about this topic: Trace (linear Algebra)
Famous quotes containing the word trace:
“Yet ere I can say where—the chariot hath
Passed over them—nor other trace I find
But as of foam after the ocean’s wrath”
—Percy Bysshe Shelley (1792–1822)