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z = :math.pow(x, n)This returns a float, not exactly a big integer.
z = x ^ nlet z = x**nx and n should be of type BigInt, which is only supported in NodeJS, Firefox, and Chrome
z := PowerN(x, n);FreePascal (or Delphi) don't come with built-in support for big integers, so you need a 3rd party implementation, such as NCalc in this example.
(There are far better big integer implementations for FreePascal/Delphi than this one...)
(There are far better big integer implementations for FreePascal/Delphi than this one...)
z = x**nz = x ** nz := x raisedTo: n.z := x ** n.