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The Gudermannian function gives a direct relationship between the circular functions and the hyperbolic functions that does not involve complex numbers. The graph of the function a cosh( x / a ) is the catenary , the curve formed by a uniform flexible chain, hanging freely between two fixed points under uniform gravity.
For real-valued functions on the real line, two interrelated notions appear: absolute continuity of functions and absolute continuity of measures. These two notions are generalized in different directions. The usual derivative of a function is related to the Radon–Nikodym derivative, or density, of a measure.
If P 1 P 2, P 3 are the components of P with respect to unit vectors i, j, k directed along the axes of the rotating frame (i.e. P = P 1 i + P 2 j +P 3 k), then the first time derivative [dP/dt] of P with respect to the rotating frame is, by definition, dP 1 /dt i + dP 2 /dt j + dP 3 /dt k.
The New York-based 2nd U.S. Circuit Court of Appeals declined to have the full court reconsider a three-judge panel's October rejection of Halkbank's argument that it deserved immunity from ...
Police in Madison, Wisc., said Monday they were investigating reports of a shooting that left multiple people injured at a Christian school. The incident occurred at Abundant Life Christian School ...
A new report has identified several factors that can strongly predict at age 60 if people will develop dementia by 80, including having diabetes, not exercising, having a stroke, and not engaging ...
x erf x 1 − erf x; 0: 0: 1: 0.02: 0.022 564 575: 0.977 435 425: 0.04: 0.045 111 106: 0.954 888 894: 0.06: 0.067 621 594: 0.932 378 406: 0.08: 0.090 078 126: 0.909 ...
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