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cosh(x) returns the hyperbolic cosine of the elements of x, when x is a
REAL scalar, vector, matrix or array.  The result has the same shape as
x.  In terms of other functions, cosh(x) = (exp(x) + exp(-x))/2.

When any element of x is MISSING or > 710.4758600739439 in absolute
value, the corresponding element of cosh(x) is MISSING and a warning
message is printed.

When x is a structure, all of whose non-structure components are REAL,
cosh(x) is a structure of the same shape and with the same component
names as x, with each non-structure component transformed by cosh().

See topic 'transformations' for more information on cosh().

Keywords: transformations
See topic 'transformations' for information on cosh().

Gary Oehlert 2003-01-15