<- [[.:prplreference| PRPL reference]] <- [[.:prplreference#math|Math]] ===== log10 ===== ^Arguments^Result^Notation^ |float| float| [float- float] | === Description === The base ten logarithm. Gives the number of digits in the number before the decimal point. On zero, returns -inf. Below zero, returns NaN, a special value that always causes failure when compared to other numbers. (ie. (NaN<0) -> false, (NaN>=0) -> false)
other logarithms
log10(x) = log(x, 10)
log10(x)/log10(e) = ln(x)
log10(2)=0.3010-ish
log10(e)=0.4343-ish
log10(10)=1
=== Examples === trace(log10(1)) # prints '0' trace(log10(10)) # prints '1'