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Usage:
tanh(x), x REAL or a structure with REAL components
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Keywords:
transformations
tanh(x) returns the hyperbolic sine 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, tanh(x) = (exp(x)-exp(-x))/
((exp(x)+exp(-x))
When any element of x is MISSING the corresponding element of tanh(x) is
MISSING and a warning message is printed.
When x is a structure, all of whose non-structure components are REAL,
tanh(x) is a structure of the same shape and with the same component
names as x, with each non-structure component transformed by tanh().
See topic 'transformations' for more information on tanh().
Gary Oehlert
2003-01-15