Exact Differential
In multivariate calculus, a differential is said to be exact, as contrasted with an inexact differential, if it is of the form dQ, for some differentiable function Q.
Read more about Exact Differential: Partial Differential Relations, Some Useful Equations Derived From Exact Differentials in Two Dimensions
Famous quotes containing the words exact and/or differential:
“Since we are assured that the all-wise Creator has observed the most exact proportions of number, weight and measure in the make of all things, the most likely way therefore to get any insight into the nature of those parts of the Creation which come within our observation must in all reason be to number, weigh and measure.”
—Stephen Hales (1677–1761)
“But how is one to make a scientist understand that there is something unalterably deranged about differential calculus, quantum theory, or the obscene and so inanely liturgical ordeals of the precession of the equinoxes.”
—Antonin Artaud (1896–1948)