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1 dzień temu · Square roots Square roots of −1. In the complex numbers, , there are exactly two numbers, i and −i, that give −1 when squared. In there are infinitely many square roots of minus one: the quaternion solution for the square root of −1 is the unit sphere in .
6 godz. temu · The number π (/ p aɪ /; 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.It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although fractions such as are commonly used to ...
6 godz. temu · 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 i 2 = −1.. In mathematics, a complex number is an element of a number system that extends the real numbers with a specific element denoted i ...
1 dzień temu · Type I Chebyshev filters are the most common types of Chebyshev filters. The gain (or amplitude) response, , as a function of angular frequency of the th-order low-pass filter is equal to the absolute value of the transfer function evaluated at : where is the ripple factor, is the cutoff frequency and is a Chebyshev polynomial of the th order.
1 dzień temu · Latin (lingua Latina, Latin: [ˈlɪŋɡʷa ɫaˈtiːna], or Latinum, Latin: [ɫaˈtiːnʊ̃]) is a classical language belonging to the Italic branch of the Indo-European languages.Considered a dead language, Latin was originally spoken in Latium (now known as Lazio), the lower Tiber area around Rome, Italy. Through the expansion of the Roman Republic it became the dominant language in the ...
1 dzień temu · The first part of the Rhind papyrus consists of reference tables and a collection of 21 arithmetic and 20 algebraic problems. The problems start out with simple fractional expressions, followed by completion (sekem) problems and more involved linear equations (aha problems).The first part of the papyrus is taken up by the 2/n table.The fractions 2/n for odd n ranging from 3 to 101 are ...
