exact differential equation


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exact differential equation

[ig′zakt dif·ə′ren·chəl i‚kwā·zhən]
(mathematics)
A differential equation obtained by setting the total differential of some function equal to zero.
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This is our exact differential equation for [R.sub.1] and it determines [R.sub.1] in terms of [R.sub.0].
Solution of Einstein's geometrical gravitational field equations exterior to astrophysically real or hypothetical time varying distributions of mass within regions of spherical geometry
There are also two new appendices, on exact differential equations and on generation of auxiliary functions as Legendre transformations.
Introduction to the Thermodynamics of Materials

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