A hyperbolic sine function in mathematics, defined as (e^x - e^(-x))/2. It is the hyperbolic analog of the ordinary sine function.
From hyperbolic sine, shortened to 'sinh' in mathematical notation. The term was coined in the early 20th century as mathematicians developed hyperbolic functions as analogs to circular trigonometric functions.
The sinh function creates a beautiful curve that looks like a sideways exponential growth, appearing in everything from the shape of hanging cables to the physics of relativistic motion. Unlike regular sine which oscillates between -1 and 1, sinh grows exponentially and can reach any value!
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