| 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 |
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| 13.4 rounds to | 13 |
| 13.5 rounds to | 14 // Round up to even |
| 13.6 rounds to | 14 |
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| Notes |
The Trunc function does the same, but returns the integer in an Integer value.
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| Related commands |
| Frac |
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The fractional part of a floating point number |
| Int |
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The integer part of a floating point number as a float |
| Trunc |
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The integer part of a floating point number |
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| Example code : A simple example |
begin
WriteLn('Round(12.75) = '+IntToStr(Round(12.75)));
WriteLn('Trunc(12.75) = '+IntToStr(Trunc(12.75)));
WriteLn(' Int(12.75) = '+FloatToStr(Int(12.75)));
WriteLn(' Frac(12.75) = '+FloatToStr(Frac(12.75)));
end;
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| Show full unit code |
Round(12.75) = 13
Trunc(12.75) = 12
Int(12.75) = 12
Frac(12.75) = 0.75
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