HP 3000 Manuals HP 3000 Manuals
Format of the Functions Description
The functions in Chapter 2, "Mathematical Functions and Procedures" and
Chapter 3, "Utility Procedures" are described in a standard format; the
following items are included in the format, when applicable:
Declaration
Contains the parts of the function or procedure declaration that define
the requirements for actual parameters (arguments) included in a function
call, procedure call, or calling sequence.
Accuracy
Describes the function accuracy, using the following notation:
x = true value of the argument(s)
y = computed value of the argument(s)
f = true value of the result
g = computed value of the result
|x-y| = absolute error in the argument(s)
|x-y/x| = relative error in the argument(s)
|f-g| = absolute error in the result(s)
|f-g/f| = relative error in the result(s)
Attributes
Parameters: Describes the type and range of value(s) allowed by
the function.
Result: Describes the type and range of value(s).
HP FORTRAN 77/XL: Where applicable, names the corresponding HP FORTRAN
77/XL intrinsic or external function.
Error: Briefly describes the error conditions.
Comments
When needed, comments are supplied.
Special Values
When needed, special values are supplied.