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...round numbers to a predetermined number of decimals?
Autor: Dean
[ Print tip ]  

Tip Rating (3):  
     


function Rounder(var Value: Double; Decimals: Integer): Double;
var
  
j: Integer;
  A: Double;
begin
  
A := 1;
  case Decimals of
    
0: A := 1;
    1: A := 10;
    else
      for 
j := 1 to Decimals do
        
A := A * 10;
  end;
  Result := Int((Value * A) + 0.5) / A;
end;


procedure TForm1.Button1Click(Sender: TObject);
var
  
Value: Double;
begin
  
Value := 23.56784;
  //Result is 23.57
  
label1.Caption := FloatToStr(Rounder(Value, 2));
end;


 

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