Hello,
Sorry I clicked the post a clarification request too fast.
You cannot compute it directly. You have to use the formula
log_18(number) = ln(number)/ln(18).
Here log_18 is log in base 18, ln
is the natural logarithm (naeperian or log in base e).
Alternatively,
you can use
log_18(number) = log(number)/log(18)
where log is log in
base 10.
If you use those types of calculations a lot, it might be a
good idea to get a Casio FX-115ES, or a Casio FX-991 ES. They have
other nice features like fraction calculations and radicals.
Hope it
helps.
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Usually answered in minutes!
Hello, You cannot compute it directly. You have to use the formula log_18(number) = ln(number)/ln(18). Here log_18 is log in base 18, ln is the natural logarithm (naeperian or log in base e). Alternatively, you can use log_18(number) = log(number)/log(18) where log is log in base 10. If you use those types of calculations a lot, it might be a good idea to get a Casio FX-115ES, or a Casio FX-991 ES. They have other nice features like fraction calculations and radicals. Hope it helps.
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