Question about Casio FX-300MS Calculator

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Hi,

There is nothing special for the natural logarithm: you use the [LN] key.

You press [LN] , enter the number, then hit [=].

Here you have a negative 100, you must use the change sign (-)

**[(-)] 100 [+] 88[*] [LN] 80 [=]** The result is 285.6183439

Hope it helps.

Thank you for rating this solution

Posted on Dec 10, 2009

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Posted on Jan 02, 2017

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The calculator can only calculate logs to base e (ln) and ten (log).

However you can calculate the logarithm of x to any base b simply by calculating ln(x)/ln(b) or log(x)/log(b).

However you can calculate the logarithm of x to any base b simply by calculating ln(x)/ln(b) or log(x)/log(b).

Apr 09, 2014 | Casio FX991MS Scientific Calculator

The 30XIIS only calculates logs to base e (natural log, ln) and base 10 (common log, log). However logs to any base can be calculated indirectly.

To calculate log base b of x, calculate either log(x)/log(b) or ln(x)/ln(b).

To calculate log base b of x, calculate either log(x)/log(b) or ln(x)/ln(b).

Dec 09, 2013 | Texas Instruments TI 30XIIS Scientific...

The 30XA only calculates logs to base e (LN) and base 10 (LOG). However you can calculate the log of x to any base b simply by calculating log(x)/log(b) or ln(x)/ln(b)

Nov 29, 2013 | Texas Instruments TI-30XA Calculator

You can calculate the log to any base B by dividing the base-10 log by the log-base-10 of the base B. You can also calculate it by dividing the natural log by the natural log of B.

For example, to calculate the base-3 log of 10, calculate

log(10) / log(3)

or

ln(10) / ln(3)

For example, to calculate the base-3 log of 10, calculate

log(10) / log(3)

or

ln(10) / ln(3)

Jul 20, 2011 | Casio FX-65 Calculator

You can calculate the log of x to any base b by calculating log(x)/log(b) or ln(x)/ln(b). So, to calculate log 5 to the base 3, press

LOG 5 ) / LOG 3 ENTER

or

LN 5 ) / LN 3 ENTER

LOG 5 ) / LOG 3 ENTER

or

LN 5 ) / LN 3 ENTER

Jan 25, 2011 | Texas Instruments TI-83 Plus Calculator

To calculate the log base 2 of a value, calculate its log and then divide by the log of 2. You can use either the log or the ln keys, but be consistent. For example, to calculate the log base 2 of 16, you can calculate either log(16)/log(2) or ln(16)/ln(2).

Nov 27, 2010 | Casio FX570MS Scientific Calculator

You can calculate logs to any base by using the relationship

log-base-b(x) = log(x) / log(b) = ln(x) / ln(b)

So, to calculate the log base 2 of 32, for example, calculate log(32) and divide by log(2).

log-base-b(x) = log(x) / log(b) = ln(x) / ln(b)

So, to calculate the log base 2 of 32, for example, calculate log(32) and divide by log(2).

Nov 18, 2010 | Casio FX-300MS Calculator

The natural log is the LN key, located just to the left of the 7 key.

To calculate the common log, use the relationship log(x) = ln(x)/ln(10).

To calculate the natural log of 3, press 3 LN

To calculate the common log of 3, press 3 LN / 1 0 LN =

To calculate the common log, use the relationship log(x) = ln(x)/ln(10).

To calculate the natural log of 3, press 3 LN

To calculate the common log of 3, press 3 LN / 1 0 LN =

Aug 09, 2010 | Texas Instruments BA-II Plus Calculator

It's very simple: the calculators have a default base 10 so that log x it's log x base 10 so here is some logs:

log x base y = log x / log y

log (x*y) = log x + log y

log (x/y) = log x - log y

Hope it's helped

log x base y = log x / log y

log (x*y) = log x + log y

log (x/y) = log x - log y

Hope it's helped

Apr 09, 2009 | Sharp EL-520WBBK Calculator

In any scientific calculator log2(n) can be calculated with either ln or log function as
follows

Log2(n)= ln(n) / ln(2)

Or

Log2(n)=log(n) / log(2)

both will give nearly the same answers

Log2(n)= ln(n) / ln(2)

Or

Log2(n)=log(n) / log(2)

both will give nearly the same answers

Dec 08, 2007 | Casio FX-300MS Calculator

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