NAG FL Interface
x01aaf (pi)

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1 Purpose

x01aaf returns the numerical value of π.

2 Specification

Fortran Interface
Function x01aaf ( x)
Real (Kind=nag_wp) :: x01aaf
Real (Kind=nag_wp), Intent (In) :: x
C Header Interface
#include <nag.h>
double  x01aaf_ (double *x)
The routine may be called by the names x01aaf or nagf_math_pi.

3 Description


4 References


5 Arguments

1: x Real (Kind=nag_wp) Dummy

6 Error Indicators and Warnings


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.
x01aaf is not threaded in any implementation.

9 Further Comments


10 Example