Hyperbolic Functions

- formulae for sinh, cosh and tanh

Hyperbolic functions are used in a number of mathematical calculations associated with te design and development of radio and electronics circuits.

While these hyperbolic functions may not be widely used in everyday arithmetic, they can be very useful when addressing some more mathematical concepts.

The three hyperbolic formulae for sinh, cosh, and tanh are given below:

sinh (x) = 1/2 (e^x - e^-x)

cosh (x) = 1/2 (e^x + e^-x)

tanh (x) = (e^x - e^-x) / (e^x + e^-x)

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Gladys West - Pioneer of GPS
GPS and GNSS positioning technology is such an integral part of our lives today that we rarely stop to think about where it all came from. When we do, we usually picture men in white shirts and dark glasses hunched over calculators and slide rules. In fact, one of the early pioneers behind GPS and GNSS technology was Gladys West - a black woman.

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