| Description |
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Returns the Natural Logarithm (that is, to base E) of Value, or the logarithm to the given Base.
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| | Notes | Static methods are not methods of an object - they are simply class functions or procedures available at any time.
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| Microsoft MSDN Links |
System
System.Math
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| A simple example |
program Project1;
{$APPTYPE CONSOLE}
var
result : Double;
begin
// Log of 10 in base E = 2.30258509299405
result := System.Math.Log(10);
Console.WriteLine('Log(10) = {0}', result.ToString);
// Log of E cubed in base E = 3
result := System.Math.Log(Math.E * Math.E * Math.E);
Console.WriteLine('Log(E**3) = {0}', result.ToString);
// Log of 25 in base 5 = 2 (5 ** 2 = 25)
result := System.Math.Log(25, 5);
Console.WriteLine('Log(25, 5) = {0}', result.ToString);
Console.ReadLine;
end.
| | Show full unit code | Log(10) = 2.30258509299405
Log(E**3) = 3
Log(25, 5) = 2
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