Vectors
A vector in the Cartesian plane is an ordered pair (a, b) of real numbers. This is the mathematician's concise definition of a two-dimensional vector. Physicists and engineers like to d...
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Vectors
A vector is a quantity that has both magnitude and direction. A scalar, for comparison, has only magnitude. Velocity and displacement are everyday examples of vectors. An arrow with a directio...
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Vector
One of the perplexing problems confronting early mathematicians involved the imaginary number i, which represents the square root of -1. Mathematicians had been able to conceive of real numbers...
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