php man page for pi

Query: pi

OS: php

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

PI(3)									 1								     PI(3)

pi - Get value of pi

SYNOPSIS
float pi (void )
DESCRIPTION
Returns an approximation of pi. The returned float has a precision based on the precision directive in php.ini, which defaults to 14. Also, you can use the M_PI constant which yields identical results to pi(3).
RETURN VALUES
The value of pi as float.
EXAMPLES
Example #1 pi(3) example <?php echo pi(); // 3.1415926535898 echo M_PI; // 3.1415926535898 ?> PHP Documentation Group PI(3)
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