first differential
71Hilbert's twenty-first problem — For Riemann Hilbert factorization problems on the complex plane see Riemann Hilbert. The twenty first problem of the 23 Hilbert problems, from the celebrated list put forth in 1900 by David Hilbert, was phrased like this (English translation from …
72Impossible differential cryptanalysis — In cryptography, impossible differential cryptanalysis is a form of differential cryptanalysis for block ciphers. While ordinary differential cryptanalysis tracks differences that propagate through the cipher with greater than expected… …
73Homogeneous differential equation — A homogeneous differential equation has several distinct meanings.One meaning is that a first order ordinary differential equation is homogeneous if it has the form : frac{dy}{dx} = F(y/x).To solve such equations, one makes the change of… …
74Digital Differential Analyzer — A Digital Differential Analyzer (DDA), also sometimes called a Digital Integrating Computer [cite book last = Mayorov first = F. V. authorlink = coauthors = title = ELECTRONIC DIGITAL INTEGRATING COMPUTERS Digital Differential Analyzers publisher …
75Complex differential form — In mathematics, a complex differential form is a differential form on a manifold (usually a complex manifold) which is permitted to have complex coefficients. Complex forms have broad applications in differential geometry. On complex manifolds,… …
76Hyperbolic partial differential equation — In mathematics, a hyperbolic partial differential equation is usually a second order partial differential equation (PDE) of the form :A u {xx} + 2 B u {xy} + C u {yy} + D u x + E u y + F = 0 with: det egin{pmatrix} A B B C end{pmatrix} = A C B^2 …
77Hilbert's theorem (differential geometry) — In differential geometry, Hilbert s theorem (1901) states that there exists no complete regular surface S of constant negative Gaussian curvature K immersed in mathbb{R}^{3}. This theorem answers the question for the negative case of which… …
78Digital differential analyzer — This article is about the digital implementation of a Differential Analyzer. For other uses of DDA, see DDA. For the graphics algorithm, see Digital Differential Analyzer (graphics algorithm). A digital differential analyzer (DDA), also sometimes …
79Fully differential amplifier — A fully differential amplifier, usually referred to as an FDA for brevity, is a DC coupled high gain electronic voltage amplifier with differential inputs and differential outputs. In its ordinary usage, the output of the FDA is controlled by two …
80Depression (differential diagnoses) — Neuroimaging can be a valuable tool in the diagnostic work up of various psychiatric disorders including depression.[1] Depression, one of the most commonly diagnosed psychiatric disorders,[2][ …
