Name
Ln Function
Syntax
function Ln(X: Floating-point type
): Extended;
Description
Ln
returns the natural logarithm of
X
. The Ln
function is
built-in.
Tips and Tricks
Delphi automatically converts
Integer
andVariant
arguments to floating point. To convert anInt64
argument to floating point, add 0.0.If
X
is a signaling NaN or negative (including negative infinity), Delphi reports runtime error 6 (EInvalidOp
).If
X
is zero, Delphi reports runtime error 7 (EZeroDivide
).If
X
is positive infinity, the result is positive infinity.If
X
is a quiet NaN, the result isX
.
See Also
Exp Function |
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