# Decimals..

Hi!
I have a number Ex 3.636589745 and i want to round it but keep one descimal.
In this case i will be left with the result 3.6

How do I do this?

Thanx!
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Commented:
Hi micfro.

Check if FormatFloat() fits your needs.

Markus
0
Commented:
inclde Math in uses clausule, then:

function TForm1.DoubleRound(Number: Double;Digits: Byte):Double;
var fac: Extended;
begin
fac:=Power(10,digits);
Number:=Number*fac;
Number:=Round(Number);
Result:=Number/fac;
end;

procedure TForm1.Button1Click(Sender: TObject);
var x,y: Double;
begin
x:=3.636589745;
y:=DoubleRound(x,1);
ShowMessage('y: '+FloatToStr(y));
end;

ziolko.
0
retiredCommented:
Hi micfro,

the simplest way to multiply by 10, round, then divide by 10

wbr

Janos
0
Author Commented:
Thank you very much!

You all solved my little problem :)

micfro
0
retiredCommented:
Hi micfro,

wbr

Janos
0

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Commented:
ziolko.
0
Author Commented:
Ok, I'm new to this forum! But thank you for telling me :)

micfro
0
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