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In geometry, Descartes' theorem states that for every four kissing, or mutually tangent, circles, the radii of the circles satisfy a certain quadratic equation. By solving this equation, one can construct a fourth circle tangent to three given, mutually tangent circles.
A screenshot of the English Wikipedia login screen. In computer security, logging in (or logging on, signing in, or signing on) is the process by which an individual gains access to a computer system or program by identifying and authenticating themselves.
(In fact, Descartes began work on the Meditations in 1639.) [2] One of the most influential philosophical texts ever written, it is widely read to this day. [ 3 ] The book consists of the presentation of Descartes' metaphysical system at its most detailed level and in the expanding of his philosophical system, first introduced in the fourth ...
Leibniz acknowledged the work of Ramon Llull, particularly the Ars generalis ultima (1305), as one of the inspirations for this idea. The basic elements of his characteristica would be pictographic characters unambiguously representing a limited number of elementary concepts. Leibniz called the inventory of these concepts "the alphabet of human ...
It was written in 1647. Descartes felt knowing oneself was particularly useful. This for him included medical knowledge. He hoped to cure and prevent disease, even to slow down aging. René Descartes believed the soul caused conscious thought. The body caused automatic functions like the beating of the heart and digestion he felt. The body was ...
The oil-on-canvas work depicts a young couple on an excursion outside a city, walking on a woodland path. Influenced by the Rococo Revival style during the Second French Empire , the work reflects the older style and themes of eighteenth-century artists like Jean-Honoré Fragonard and Antoine Watteau .
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Dame Marie Selipha Descartes, DBE, SLMM, BEM (née Charlery; 28 March 1914 – 11 August 2010), best known as Sesenne, was a Saint Lucian singer and cultural icon. Singing in her native patois language, at a time when authorities barred its use, Sesenne developed a wide following in the rural area in which she grew up.