Apple Numbers '08 - Manual (Page 218)

218 Chapter 12 Dictionary of Functions
COSH
The COSH function calculates the hyperbolic cosine of a number.
COSH(number)
 number: Any real number.
COUNT
The COUNT function counts the number of arguments and referenced cells that
contain numbers, numeric expressions, or dates.
COUNT(value, [value, . . .])
 value: One or more numbers.
Notes
To count any cell that contains any type of value (that is, any cell that is not empty), use
the COUNTA function.
Examples
COSH(0) returns 1.
COSH(1) returns 1.543.
COSH(5) returns 74.21.
COSH(10) returns 11,013.233.
Examples
Given the following table:
COUNT(A1:E1) returns 5.
COUNT(A2:E2) returns 0.
COUNT(A3:E3) returns 3.
COUNT(A4:E4) returns 0.
COUNT(A5:E5) returns 2.
COUNT(1, SUM(4, 5)) returns 2.