NAG CL Interface
X02AMC (real_​safe)

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1 Purpose

X02AMC returns the safe range of floating-point arithmetic.

2 Specification

#include <nag.h>
double  X02AMC
The function may be called by the names: x02amc, nag_machine_real_safe or nag_real_safe_small_number.

3 Description

X02AMC is a constant defined in the C Header file.
X02AMC is defined to be the smallest positive model number z such that for any x in the range [z,1/z] the following can be computed without undue loss of accuracy, overflow, underflow or other error:

4 References


5 Arguments


6 Error Indicators and Warnings


7 Accuracy

Not applicable.

8 Parallelism and Performance

X02AMC is not threaded in any implementation.

9 Further Comments


10 Example