Tanhdp

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Detailed Description

Functions
double	tanhdp_c (double a)
double	tanhdp (double a)

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Function Documentation

double tanhdp_c

(

double

a

)

Description:

The tanhdp function returns the hyperbolic tangent function of a real floating-point argument a. If |a| is larger than 19.0 the hyperbolic tangent function reaches a maximum of |1.0| for double-precision.

Parameters:

[in]

a

= Input float

Returns:

Resultant float

Special Cases:

• If a > 19.0, then the return value is 1.0 (maximum output for the hyperbolic tangent).
• If a < -19.0, then the return value is 1.0.
• If a is NaN, the return value is NaN.

See also:

• tanhdp_i
• tanhdp_v

Implementation Notes:

• The code supports both big and little endian modes.

double tanhdp

(

double

a

)

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