Syntax: COSH(X)
X = a numeric value
COSH returns the hyperbolic cosine of angle X. The result is greater than or equal to 1.
Examples:
COSH(1) = 1.543080635
COSH(FF1) = 3.762195691, where FF2 = -2
COSH(0) = 1
Excel function: COSH
