Difference between revisions of "Documentation/How Tos/Calc: LN function"
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== LN == | == LN == | ||
Returns the natural logarithm of a number. | Returns the natural logarithm of a number. | ||
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=== Syntax: === | === Syntax: === | ||
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: The mathematical constant ''e'' is approximately <tt>'''2.71828182845904'''</tt>. | : The mathematical constant ''e'' is approximately <tt>'''2.71828182845904'''</tt>. | ||
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=== Example: === | === Example: === | ||
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<tt>'''LN(EXP(321))'''</tt> | <tt>'''LN(EXP(321))'''</tt> | ||
: returns <tt>'''321'''</tt>. | : returns <tt>'''321'''</tt>. | ||
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=== See also: === | === See also: === | ||
Revision as of 06:35, 2 March 2008
LN
Returns the natural logarithm of a number.
Syntax:
LN(number)
- returns the natural logarithm (the logarithm to base e) of number, that is the power of e necessary to equal number.
- The mathematical constant e is approximately 2.71828182845904.
Example:
LN(3)
- returns the natural logarithm of 3 (approximately 1.0986).
LN(EXP(321))
- returns 321.
