DelphiBasics
 RoundFunction Rounds a floating point number to an integer System unit
 function Round(const Number Extended):Int64;
Description
The Round function rounds a floating point Number to an Integer value.

The rounding uses Bankers rules, where an exact half value causes a rounding to an even number:

 12.4 rounds to 12 12.5 rounds to 12 // Round down to even 12.6 rounds to 13 13.4 rounds to 13 13.5 rounds to 14 // Round up to even 13.6 rounds to 14
Notes
The Trunc function does the same, but returns the integer in an Integer value.
Related commands
 Frac The fractional part of a floating point number Int The integer part of a floating point number as a float Trunc The integer part of a floating point number

 Example code : A simple example begin   ShowMessage('Round(12.75) = '+IntToStr(Round(12.75)));   ShowMessage('Trunc(12.75) = '+IntToStr(Trunc(12.75)));   ShowMessage('  Int(12.75) = '+FloatToStr(Int(12.75)));   ShowMessage(' Frac(12.75) = '+FloatToStr(Frac(12.75))); end; Show full unit code Round(12.75) = 13   Trunc(12.75) = 12    Int(12.75) = 12    Frac(12.75) = 0.75