User Tools
4rpl:commands:ln
ln
LN
Description
The natural logarithm. Gives the magnitude of the number. On zero, returns -inf. Below zero, returns NaN, a special value that always causes failure when compared to other numbers. Eg. (NaN<0) -> false, (Nan>=0) -> false
other logarithms
ln(x) = log(x, e)
ln(x)/ln(10) = log10(x)
ln(2)=0.6931…
ln(e)=.999999
ln(10)=2.3026…
Examples
trace(ln(-1)) #prints 'NaN' trace(ln(0)) #prints '-inf' trace(ln(1)) #prints '0' trace(ln(e)) #prints '1'
⇐ Index
4rpl/commands/ln.txt · Last modified: 2022/05/19 06:20 by Karsten75
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
