The simple implementation method for php to calculate the circumference rate is original. fontcolor_PHP tutorial

Php's simple method for calculating the circumference ratio is original, fontcolor. The simple implementation method for php to calculate the circumference rate is original. fontcolor this article describes the simple implementation method for php to calculate the circumference rate. For your reference, I will share with you the following details: the simple implementation method of php to calculate the circumference is original, fontcolor

This article describes the simple implementation of php to calculate the circumference rate. We will share this with you for your reference. The details are as follows:

In the previous article "C language for circumference rate", we provided a simple calculation method for circumference rate. here, we use the previous code to provide the calculation method for php to calculate the circumference rate. The code is as follows:

<? Php $ t = 1; $ pi = 0; $ n = 1.0; $ s = 1; while (abs ($ t)> 1e-6) {$ pi = $ pi + $ t; $ n = $ n + 2; $ s =-$ s; $ t = $ s/$ n ;} $ pi = $ pi * 4; printf ("pi = % 10.6f", $ pi);?>

Calculation result:

Pi = 1, 3.141591

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