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+ # LN
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+
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+ ## Syntax
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+
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+ ```
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+ LN(numericExpression)
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+ ```
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+
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+
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+ ## Description
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+
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+ Returns the Natural Logarithm of the _ numeric expression given_ .
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+ A natural logarithm is a logarithm in base _ e_ (_ e_ value can be
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+ obtained with ` EXP(1) ` ).
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+
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+ Both the argument and the result are of type ` Float ` .
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+
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+ ## Examples
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+
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+ ``` basic
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+ PRINT "LN(10) is "; LN(10)
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+ ```
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+
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+ You can compute the logarithm in any ` base ` dividing ` LN(x) ` by ` LN(base) ` :
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+
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+ ``` basic
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+ PRINT "LN2(8) is "; LN(8) / LN(2) : REM Base 2 Logarithm
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+ PRINT "LOG(100) is "; LN(100) / LN(10) : REM Base 10 Logarithm
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+ ```
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+
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+
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+ ## Remarks
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+
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+ * This function is 100% Sinclair BASIC Compatible
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+ * If the given argument type is not float, it will be [ converted] ( cast.md ) to float before operating with it.
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+
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+ ## See also
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+
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+ * [ EXP] ( exp.md )
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