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Concept2, Inc. is an American manufacturer of rowing equipment and exercise machines based in Morrisville, Vermont. It is best known for its air resistance indoor rowing machines (known as "ergometers" or "ergs"), which are considered the standard training and testing machines for competition rowers and can be found in most gyms .
The decimal value of the natural logarithm of 2 (sequence A002162 in the OEIS ) is approximately. The logarithm of 2 in other bases is obtained with the formula. The common logarithm in particular is ( OEIS : A007524 ) The inverse of this number is the binary logarithm of 10: ( OEIS : A020862 ). By the Lindemann–Weierstrass theorem, the ...
Inventory. The examples cited by Hachlili in 1977 are the synagogues at Hammat Tiberias (4th century), Husaifa (5th century), Na'aran and Beth Alpha (6th century). The large synagogue of Sepphoris (5th-6th century), more recently discovered, has a different panel scheme; the one at Susiya probay had a zodiac mosaic in the 6th century, which was later replaced by a non-figurative pattern; at En ...
Indoor rower. An indoor rower, or rowing machine, is a machine used to simulate the action of watercraft rowing for the purpose of exercise or training for rowing. Modern indoor rowers are often known as ergometers (colloquially erg or ergo) because they measure work performed by the rower (which can be measured in ergs ).
The natural logarithm of a number is its logarithm to the base of the mathematical constant e, which is an irrational and transcendental number approximately equal to 2.718 281 828 459. [1] The natural logarithm of x is generally written as ln x, loge x, or sometimes, if the base e is implicit, simply log x.
Calculus. In calculus, logarithmic differentiation or differentiation by taking logarithms is a method used to differentiate functions by employing the logarithmic derivative of a function f, [1] The technique is often performed in cases where it is easier to differentiate the logarithm of a function rather than the function itself.
In mathematics, a sequence a = (a0, a1, ..., an) of nonnegative real numbers is called a logarithmically concave sequence, or a log-concave sequence for short, if ai2 ≥ ai−1ai+1 holds for 0 < i < n . Remark: some authors (explicitly or not) add two further conditions in the definition of log-concave sequences: a is non-negative.
The history of logarithms is the story of a correspondence (in modern terms, a group isomorphism) between multiplication on the positive real numbers and addition on the real number line that was formalized in seventeenth century Europe and was widely used to simplify calculation until the advent of the digital computer.