| Description |
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The Log10 function returns the logarithm to base 10 of Number.
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| Related commands |
| Exp |
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Gives the exponent of a number |
| Ln |
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Gives the natural logarithm of a number |
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| Example code : Show the logarithm of a set of numbers |
// Full Unit code.
// -----------------------------------------------------------
// You must store this code in a unit called Unit1 with a form
// called Form1 that has an OnCreate event called FormCreate.
unit Unit1;
interface
uses
Math, // Unit containing the Log10 command
SysUtils,
Forms, Dialogs;
type
TForm1 = class(TForm)
procedure FormCreate(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm} // Include form definitions
procedure TForm1.FormCreate(Sender: TObject);
begin
// Show the Log to base 10 values of 3 numbers
ShowMessage('Log10(1) = '+FloatToStr(Log10(1)));
ShowMessage('Log10(5) = '+FloatToStr(Log10(5)));
ShowMessage('Log10(10) = '+FloatToStr(Log10(10)));
end;
end.
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| Hide full unit code |
Log10(1) = 0
Log10(5) = 0.698970004336019
Log10(10) = 1
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