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So, If i would like to calculate the value of 6^8 mod 5 using the pow function, what should I put in a line??
In the assumption that You don't need to import it first
I know that pow is used like pow (x, y) = pow (6, 8) = 6^8 and
My guess is
mod.pow(6,8)
Thank you!
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The math. pow() method returns the value of x raised to power y. If x is negative and y is not an integer, it returns a ValueError. This method converts both arguments into a float.
The pow() method takes three parameters: number - the base value that is raised to a certain power. power - the exponent value that raises number. modulus - (optional) divides the result of number paused to a power and finds the remainder: number^power % modulus.
It's simple: pow takes an optional 3rd argument for the modulus.
From the docs:
pow(x, y[, z])Return x to the power y; if z is present, return x to the power y, modulo z (computed more efficiently than
pow(x, y) % z). The two-argument form pow(x, y) is equivalent to using the power operator:x**y.
So you want:
pow(6, 8, 5)
Not only is pow(x, y, z) faster & more efficient than (x ** y) % z it can easily handle large values of y without using arbitrary precision arithmetic, assuming z is a simple machine integer.
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