~~NOTOC~~
<=[[4rpl:start| Index]] \\
<= [[4rpl:start#Math]]  

====== 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:<WRAP indent>
log10(x) = log(x, 10) \\
log10(x)/log10(e) = ln(x) \\
log10(2)=0.3010-//ish// \\
log10(e)=0.4343-//ish// \\
log10(10)=1 \\
</WRAP>

===== Examples =====
<code 4rpl>
trace(log10(1))  # prints '0'
trace(log10(10)) # prints '1'
</code>
<=[[4rpl:start| Index]]