HP OpenVMS Systems Documentation

Interface

F_TYPE sqrt (F_TYPE x)

Description

sqrt() computes the rounded square root of x.

For platforms supporting a signed zero, sqrt(-0) = 0.

Exceptions

Interface

F_TYPE tan (F_TYPE x)

F_TYPE tand (F_TYPE x)

Description

tan() computes the tangent of x, measured in radians.

tand() computes the tangent of x, measured in degrees.

Exceptions

See Also

Interface

F_TYPE tanh (F_TYPE x)

Description

tanh() computes the hyperbolic tangent of x.

tanh(x) is defined as (exp(x)-exp(-x))/(exp(x) + exp(-x)).

Exceptions

Interface

F_TYPE trunc (F_TYPE x)

Description

trunc() truncates x to an integral value.

Exceptions

Interface

int unordered (F_TYPE x, F_TYPE y)

Description

unordered(x,y) returns the value 1 (true) if x, y, or both are a NaN and returns the value 0 (false) otherwise.

Exceptions

Table A-1 contains the hexadecimal and decimal boundary values used in CPML calculations and exception checking.

Each entry-point name in Table B-1 is unique and corresponds to data-type specific calculations in a CPML routine. For example, the acos function has five entry-point-names for the OpenVMS Alpha operating system. Because five floating-point data types are available, five acos routines are provided: math$acos_s, math$acos_t, math$acos_f, math$acos_g, and math$acos_x. Use the entry-point name that corresponds to your input argument data type.