Spirala lui archimedes biography
Spirala lui archimedes biography wikipedia
Archimedes biography summary.
Archimedean spiral
Spiral with constant distance from itself
The Archimedean spiral (also known as Archimedes' spiral, the arithmetic spiral) is a spiral named after the 3rd-century BC GreekmathematicianArchimedes.
The term Archimedean spiral is sometimes used to refer to the more general class of spirals of this type (see below), in contrast to Archimedes' spiral (the specific arithmetic spiral of Archimedes). It is the locus corresponding to the locations over time of a point moving away from a fixed point with a constant speed along a line that rotates with constant angular velocity.
Spirala lui archimedes biography
Equivalently, in polar coordinates(r, θ) it can be described by the equation with real numberb. Changing the parameter b controls the distance between loops.
From the above equation, it can thus be stated: position of the particle from point of start is proportional to angle θ as time elapses.
Archimedes described such a spiral in his book On Spirals. Conon of Samos was a fr