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3D Slicer, a free and open source software package for image analysis and scientific visualization Slicer (3D printing) , computer software used in the majority of 3D printing processes People
The Archimedean spiral (also known as Archimedes' spiral, the arithmetic spiral) is a spiral named after the 3rd-century BC Greek mathematician Archimedes. 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 ...
Spiral vegetable slicers (also known as spiralizers) are kitchen appliances used for cutting vegetables, such as zucchinis (to make zoodles), potatoes, cucumbers, carrots, apples, parsnips, and beetroots, into linguine-like strands which can be used as an alternative to pasta.
Python sets are very much like mathematical sets, and support operations like set intersection and union. Python also features a frozenset class for immutable sets, see Collection types. Dictionaries (class dict) are mutable mappings tying keys and corresponding values. Python has special syntax to create dictionaries ({key: value})
A two-dimensional, or plane, spiral may be easily described using polar coordinates, where the radius is a monotonic continuous function of angle : r = r ( φ ) . {\displaystyle r=r(\varphi )\;.} The circle would be regarded as a degenerate case (the function not being strictly monotonic, but rather constant ).
Then rotate the given axis and the point such that the axis is aligned with one of the two coordinate axes for that particular coordinate plane (x, y or z) Use one of the fundamental rotation matrices to rotate the point depending on the coordinate axis with which the rotation axis is aligned.
The representation of the Fermat spiral in polar coordinates (r, φ) is given by the equation = for φ ≥ 0. The parameter is a scaling factor affecting the size of the spiral but not its shape. The two choices of sign give the two branches of the spiral, which meet smoothly at the origin.
An orbit within the attractor follows an outward spiral close to the , plane around an unstable fixed point. Once the graph spirals out enough, a second fixed point influences the graph, causing a rise and twist in the -dimension. In the time domain, it becomes apparent that although each variable is oscillating within a fixed range of values ...