What is the function in PHP used for calculating exponents with arbitrary precision?

When working with large numbers in PHP and needing to calculate exponents with arbitrary precision, the `bcpow` function can be used. This function allows for the calculation of a number raised to the power of another number with arbitrary precision. By using `bcpow`, you can avoid potential overflow or loss of precision that may occur with regular arithmetic operations on large numbers. 

// Calculate 2^100 with arbitrary precision
$result = bcpow('2', '100');

echo $result; // Output: 1267650600228229401496703205376

Keywords

PHP function arbitrary precision exponents calculation

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