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1 dzień temu · The exponential function is defined on the entire domain of the complex numbers.The definition of sine and cosine can be extended to all complex numbers via = = + These can be reversed to give Euler's formula = + = When plotted on the complex plane, the function for real values of traces out the unit circle in the complex plane.. When is a real number, sine and cosine ...
1 dzień temu · Introduction. When a body is free to rotate around an axis, torque must be applied to change its angular momentum.The amount of torque needed to cause any given angular acceleration (the rate of change in angular velocity) is proportional to the moment of inertia of the body.Moments of inertia may be expressed in units of kilogram metre squared (kg·m 2) in SI units and pound-foot-second ...
1 dzień temu · In mathematics, the Laplace transform, named after Pierre-Simon Laplace (/ l ə ˈ p l ɑː s /), is an integral transform that converts a function of a real variable (usually , in the time domain) to a function of a complex variable (in the complex-valued frequency domain, also known as s-domain, or s-plane).. The transform is useful for converting differentiation and integration in the time ...
1 dzień temu · In mathematics, a field is a set on which addition, subtraction, multiplication, and division are defined and behave as the corresponding operations on rational and real numbers.A field is thus a fundamental algebraic structure which is widely used in algebra, number theory, and many other areas of mathematics.. The best known fields are the field of rational numbers, the field of real numbers ...
1 dzień temu · The distance the light from the edge of the observable universe has traveled is very close to the age of the universe times the speed of light, 13.8 billion light-years (4.2 × 10 ^ 9 pc), but this does not represent the distance at any given time because the edge of the observable universe and the Earth have since moved further apart.
1 dzień temu · The Nibiru cataclysm is a supposed disastrous encounter between Earth and a large planetary object (either a collision or a near-miss) that certain groups believed would take place in the early 21st century.Believers in this doomsday event usually refer to this object as Nibiru or Planet X.The idea was first put forward in 1995 by Nancy Lieder, founder of the website ZetaTalk.
1 dzień temu · John F. Kennedy International Airport (IATA: JFK, ICAO: KJFK, FAA LID: JFK) is a major international airport serving New York City and its metropolitan area, in the state of New York, United States.The airport is the busiest of the seven airports in the New York airport system, the 6th-busiest airport in the United States, and the busiest international air passenger gateway into North America.
