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bcpowmod
(PHP 5) bcpowmod --
Raise an arbitrary precision number to another, reduced by a specified modulus
Descriptionstring bcpowmod ( string x, string y, string modulus [, int scale] ) Use the fast-exponentiation method to raise x
to the power y with respect to the modulus
modulus. The optional
scale can be used to set the number of
digits after the decimal place in the result.
Замечание:
Because this method uses the modulus operation, non-natural numbers
may give unexpected results. A natural number is any positive
non-zero integer.
ПримерыThe following two statements are functionally identical. The
bcpowmod() version however, executes in
less time and can accept larger parameters.
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