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4rpl:commands:log10
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. Eg. (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'
⇐ Index
4rpl/commands/log10.txt · Last modified: 2022/05/19 06:20 by Karsten75
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