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4rpl:commands:log10 [2021/01/08 16:01] – external edit 127.0.0.1 | 4rpl:commands:log10 [2025/02/14 14:57] (current) – external edit 127.0.0.1 | ||
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~~NOTOC~~ | ~~NOTOC~~ | ||
- | < | + | < |
+ | <= [[4rpl: | ||
====== log10 ====== | ====== log10 ====== | ||
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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 | 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 | + | other logarithms:<WRAP indent> |
- | log10(10)=1 | + | log10(x) = log(x, 10) \\ |
+ | log10(x)/ | ||
+ | log10(2)=0.3010-//ish// \\ | ||
+ | log10(e)=0.4343-//ish// \\ | ||
+ | log10(10)=1 \\ | ||
+ | </ | ||
===== Examples ===== | ===== Examples ===== |