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x = 3 ** 247x = :math.pow(3, 247)This returns a float, not exactly a big integer.
x :: Integer
x = 3^247The type signature gives this value type Integer, which is arbitrarily large. The type Int would not be large enough to hold this value.
If the type annotation (the first line) were omited, then x would have type "(Num a) => a".
If the type annotation (the first line) were omited, then x would have type "(Num a) => a".
(setf x (expt 3 247))$x = gmp_pow(3, 247);
echo gmp_strval($x);There are two BigNum libraries in PHP, gmp and bc.
gmp is more popular.
gmp is more popular.
(define x (expt 3 247))Most Schemes handle arbitrary precision arithmetic by default.