NAG CL Interface
X01AAC (pi)

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1 Purpose

X01AAC returns the numerical value of π.

2 Specification

#include <nag.h>
double  X01AAC
The function may be called by the names: x01aac, nag_math_pi or nag_pi.

3 Description

X01AAC is a constant defined in the C Header file.

4 References

None.

5 Arguments

None.

6 Error Indicators and Warnings

None.

7 Accuracy

The result should be correct to machine precision (see Chapter X02).

8 Parallelism and Performance

Background information to multithreading can be found in the Multithreading documentation.
X01AAC is not threaded in any implementation.

9 Further Comments

None.

10 Example

None.