RosettaCodeData/Task/Real-constants-and-functions/Delphi/real-constants-and-functions.pas

Pi;             // π (Pi)
LogN(BASE, x)   // log of x for a specified base
Log2(x)         // log of x for base 2
Log10(x)        // log of x for base 10
Floor(x);       // floor
Ceil(x);        // ceiling
Power(x, y);    // power