Question about Casio FX-300MS Calculator

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The calculator fell, after which it mon't display anymore.

Casio FX-300MS calculator. It fell/crashed. It didn't break--physically it's intact--but it won't turn on when i press the power button. it just won't answer me. it won't come up anymore.

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If you are lucky, the fall may have displaced the batteries inside so that electrical contact is no longer being made. Reseat the batteries and problem may disappear.
Hope it helps.

Posted on Sep 25, 2009

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Posted on Jan 02, 2017

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The Casio FX-300MS does not provide base 2 logarithms as a single key operation. However, you can use the natural logarithm (ln, base e = 2.7182818...) and the formula

log2 ( x ) = ln( x ) / ln( 2 )

To calculate the base 2 logarithm of 16, key in
[ln] 16 [/] [ln] 2 [=]
and get displayed the correct answer 4.

The same simple formula also works for any other base, and actually for any other logarithms provided by your calculator. The FX-300MS also provides a logarithm to base 10 (lg). You could also
[lg] 16 [/] [lg] 2 [=] to get the solution to the problem above, or
[lg] 25 [/] [lg] 5 [=] to get the base 5 logarithm of 25.

Mar 20, 2014 | Casio FX-300MS Calculator

2 Answers

How do i get my calculator to stop displyaing 15!/5! as 1.08972864*10*10?

You don't. The calculator can display only ten digits in a number. This number has eleven digits to the left of the decimal point, so the only way the calculator can display the most significant digits is to switch to scientific notation.

Oct 06, 2010 | Casio FX-300MS Calculator

1 Answer

How to use antilog by casio fx-82es

The inverse of the log function is the function 10^
antilogarithm of (x)=10^(x)
The function shares the same physical key as the [LOG] function. To access it you press [SHIFT][LOG].

The antilogarithm of the natural log [LN] is the exponential function [e^x]. It shares the same physical key with the [LN] function. To access it press [SHIFT][LN]

Aug 29, 2010 | Casio FX-300MS Calculator

1 Answer

How to calculate calculus problem by a scientific calculator fx-991ms

If by calculus problem you mean derivatives of functions, integrals, extrema and such things, I am sorry to inform you that neither the Casio FX-300MS, nor the FX-991MS can handle them. The newer Casio calculator FX-991ES is capable of performing numerical differentiations and integrations. There also graphing calculators by Casio FX-9750G, FX-9860G as well as by Texas Instruments (TI 83 PLUS/TI84PLUS) that are reasonably performant in that area.

Hope it helps.

Oct 19, 2009 | Casio FX-300MS Calculator

1 Answer

How do I key mix number fractions on the Casio 300MS Calculator?

Use the [ab/c] key
1[ab/c]2[ab/c] 3 displays 1u2u3. Pressing [SHIFT][d/c] converts this to 5u3. Pressing the [SHIFT][d/c] again converts the result to 1u2u3

Hope it helps.

Sep 25, 2009 | Casio FX-300MS Calculator

1 Answer

Can I simplify radaicals with the Casio FX-300MS?

This calculator transforms every radical into a decimal number. It does not perform exact calculations with radicals. For that you would need a Casio FX-115ES or FX-991ES (Natural Display).
Hope it helps.

May 13, 2009 | Casio FX-300MS Calculator

1 Answer

Will my casio fx 300ms factor

The FX-300MS cannot handle symbolic algebra. It cruches numbers but does manipulate litteral expressions. Sorry, it does not factor algebraic expressions.
Hope it helps.

Apr 08, 2009 | Casio FX-300MSPlus Calculator

1 Answer

I need to find the antilog to -6.80 on a casioi fx-300ms calculat

Alot of people have this doubt, so I might as well make it clear.

Press the 10^x button (while pressing SHIFT, of course; it's exactly above the LOG button) followed by the number whose antilog you desire.

Example :
Let's say we need antilog(-6.8),
1. Press SHIFT, followed by LOG (i.e 10^x); this'll display a 10 on the screen;
2. Type in -6.8;
3. Press "=";
4. This'll display 1.584893192x10^-7 as the solution, which is correct!
5. Bye, lol :P


Apr 07, 2009 | Casio FX-300MS Calculator

1 Answer

Casio FX-300MS - Simplifying Radicals

Sorry the calculator handles fractions but not radicals. You may be interested in the newer Casios FX-115ES, or FX-991ES, (Natural display).
It handles a lof more that radical and fractions.
Hope it helps.

May 28, 2008 | Casio FX-300MS Calculator

1 Answer

It is actually about Casio fx-350MS

Mar 08, 2008 | Casio FX-300MS Calculator

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