==COSH(number)
COSH(0)
The COSH function returns the hyperbolic cosine of an argument. In this example, the argument is 0, which returns the x-coordinate 1. Therefore, it will evaluate to 1.
COSH(a)
The COSH function returns the hyperbolic cosine of an argument. In this example, the argument is a, which is a variable or a number. This formula will evaluate to the hyperbolic cosine of a.
The COSH function is used to calculate the hyperbolic cosine of a number, which is the cosine of the hyperbolic angle of that number. COSH requires real number arguments to be provided.