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In PHP, pow is a function used to perform power calculations; the first parameter of the function specifies the base to be used, the second parameter specifies the exponent, and the returned result is the power calculation. As a result, the syntax is "pow(base,exponent)".
The operating environment of this article: Windows 10 system, PHP version 7.1, Dell G3 computer.
The pow() function returns x raised to the yth power.
Syntax
pow(x,y)
xRequired. Specifies the base to be used.
yRequired. Specify index.
Return value: x raised to the power of y.
The example is as follows:
<?php echo(pow(2,4) . "<br>"); echo(pow(-2,4) . "<br>"); echo(pow(-2,-4) . "<br>"); echo(pow(-2,-3.2)); ?>
Output result:
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