Re^2: Clean log_10 ?

[LanX]

> > I'm interested to get the log10 of a whole number

> the log10 is going to be irrational

Yeah you're right.

Rewording: I need the correct int(log10) to reproduce the E notation of a whole number.

[dave_the_m]

Do you mean that the number you are taking the log of will always be a power of 10? In which case, the log will be almost an integer, so round to nearest int: $power = int($log10 + 0.5);

Otherwise, why not use sprintf "%e", $num or similar?

Dave.

[LanX]

Here the context

Re: More elegant way than multiple "if"?

I didn't want 1TB to be listed as 1000GB.

But the POSIX solution is quite good.