| Description |
The Exp function takes an integer or floating point Number and raises e (2.72) to that power.
This is only used for mathematical processing.
Exp has the opposite effect to Ln - the natural logarithm.
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| Related commands |
| Ln |
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Gives the natural logarithm of a number |
| Log10 |
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Gives the log to base 10 of a number |
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| Example code : Calculate the exponent of 2 |
var
float : Double;
begin
// Get the natural logarithm of 2
float := Ln(2);
// Show this value
WriteLn('Ln(2) = '+FloatToStr(float));
// Get the exponent of this value - reverses the Ln operation
float := Exp(float);
// Show this value
WriteLn('Exp(Ln(2)) = '+FloatToStr(float));
end;
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| Show full unit code |
Ln(2) = 0.693147180559945
Exp(Ln(2)) = 2
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