LN Logarithm (natural)
Function
LN gives the natural logarithm (the logarithm to base e) of a value. It acts as the inverse of EXP.
How to use LN
LN is followed by a numeric value, for example
60 LET x=LN y
An expression must be enclosed in brackets. The value following LN must be greater than 0. LN then returns the natural logarithm of this value.
Format
- LN num-const
- LN num-var
- LN (num-expr)
See also