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Brachiopod - Wikipedia An articulate brachiopod: Pedicle valve Brachial valve Pedicle Surface Modern brachiopods range from 1 to 100 millimetres (0.039 to 3.937 in) long, and most species are about 10 to 30 millimetres (0.39 to 1.18 in). Magellania venosa is the largest extant species. The largest brachiopods known - Gigantoproductus and Titanaria, reaching 30 to 38 centimetres (12 to 15 in) in width - occurred ... Complex number - Wikipedia 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 i2 = −1. In mathematics, a complex number is an element of a number system that contains ...
Probability distribution - Wikipedia A probability distribution is a mathematical description of the probabilities of events, subsets of the sample space.The sample space, often denot...