How to find 'n' raise to power 'n' in java -


i trying find efficient way calculating n^n in java. result large large n, used biginteger result data type , n integer. if n becomes large n=10000000 takes more time calculate result. there efficient way calculate within second.

handle log of number, n ln(n), in program. n grows, size of n ln(n) relative n^n shrinks faster , faster.

the way implement depends on need do. if don’t need n^n inside program, forget , on paper once program outputs. when you’re handling numbers big, log/order of magnitude/the number of digits has (all of synonymous) of essential information. if program outputs x, report answer around e^x, , say.

if need n^n inside program, should still calculate x = ln(n^n) = n ln(n). you’re going have come creative way of going x value program can use.


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