Differential
131Differential geometry — A triangle immersed in a saddle shape plane (a hyperbolic paraboloid), as well as two diverging ultraparallel lines. Differential geometry is a mathematical discipline that uses the techniques of differential and integral calculus, as well as… …
132Differential analyser — This article is about analogue differential analysers. For the digital implementation, see Digital Differential Analyzer. Thomson disc and sphere analyser for studying tides The differential analyser is a mechanical analogue computer designed to… …
