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1 day ago · A complex number can be visually represented as a pair of numbers (a, b) forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the "imaginary unit", that satisfies i2 = −1. In mathematics, a complex number is an element of a number system that extends ...
3 hours ago · An ellipse (red) obtained as the intersection of a cone with an inclined plane. Ellipse: notations Ellipses: examples with increasing eccentricity. In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant.
1 day ago · t. e. The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.
3 hours ago · As a philosophy of mathematics, semiotics provides a lot of flexibility for formulating solutions to philosophical challenges. Both the ontology and epistemology of mathematics become diverse and distributed, and lose their awesome mystery. The price that we pay, however, is a loss of stability and a threat to the rigor of mathematics.
3 hours ago · Thom had a monumental program: to lay down the foundations of a new natural philosophy based on mathematics, and more particularly on geometry and topology. Natural philosophy, from his point of view, included physics, embryology, optics, hydrodynamics, biology, linguistics, ethology, semantics, psychoanalysis and other fields.
1 day ago · Addition (usually signified by the plus symbol +) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division. [2] The addition of two whole numbers results in the total amount or sum of those values combined. The example in the adjacent image shows two columns of three apples and two apples ...
1 day ago · At the same time the accused himself protested his innocence and defended himself point by point with energy and logic. Moreover, his statements were supported by a dozen defence witnesses. Finally, the absence of motive for the crime was a serious thorn in the prosecution case.
