<- [[crpl:crplreference| CRPL reference]] <- [[crpl:crplreference#math_commands|Math Commands]] ===== log10 ===== log10 === 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 === ShowTraceLog ClearTraceLog -1 log10 trace #NaN 0 log10 trace #-inf 1 log10 trace #0 10 log10 trace #1 100 log10 trace #2