nag_pi (X01AAC) (PDF version)
x01 Chapter Contents
x01 Chapter Introduction
NAG Library Manual
NAG Library Function Document
nag_pi (X01AAC)
+
−
Contents
1
Purpose
2
Specification
3
Description
4
References
5
Arguments
6
Error Indicators and Warnings
7
Accuracy
8
Parallelism and Performance
9
Further Comments
10
Example
1 Purpose
nag_pi (X01AAC) returns the numerical value of
π
.
2 Specification
#include <nag.h>
#include <nagx01.h>
double
nag_pi
3 Description
nag_pi (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
Not applicable.
9 Further Comments
None.
10 Example
None.
nag_pi (X01AAC) (PDF version)
x01 Chapter Contents
x01 Chapter Introduction
NAG Library Manual
© The Numerical Algorithms Group Ltd, Oxford, UK. 2014