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 |
|
Download this web site as a Windows program.
|
|
|
|
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 |
|
|