# Top 10 Casio FX-300MS Calculator Questions & Answers

## Question

• 22,286 People Helped

### how to calculate log value in calculator with different base value

i want to know how to calculate in calculator "casio fx-991ms" fx-991ms" to calculate log value

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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

Posted on Apr 24, 2009

## Question

• 10,762 People Helped

### Convert to Binary in Casio fx-82ES

How can i get the binary representation to numbers in Casio fx-82ES
ie. 3 ----> 11

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dear kladofora thire is no 4:BASE-N in the mode please i need help Gist

Posted on Dec 13, 2009

## Question

• 8,695 People Helped

### how do I calculate the

how do I calculate the mod function in my casio fx 100ms model

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It seemed there is no Modulo function in fx-100MS. But Mod is just the remainder of a division operator.

So if you have A mod B = C, divide A by B, subract the remaining whole number, and multiply it by B to get C.

Example:

7 mod 4 = 3

In the Calculator:

7 / 4 = 1.75, then 1.75 - 1 = 0.75. Then 0.75 x 4 = 3

Posted on Jun 24, 2011

## Question

• 7,367 People Helped

### Reset?!

My calculator answers in scientific notation. How do you reset your casio fx-300Ms (S-V.P.A.M)?

Posted by on

Thank You so very much, this solution fixed my problem.

Posted on Feb 13, 2009

## Question

• 6,099 People Helped

### how to solve a quadratic formula using a casio

how to solve a quadratic formula using a casio fx-300 MS

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Hello,
The calculator does not have a solve program, but you can still use it to solve the quadratic equation with a little effort. If you know the therory skip toward the end.

Let aX^2+bX+C=0
1. First calculate the discriminant usually called Delta and given by
Delta =b^2 -4*a*c store the value in the variable D
If Delta is positive you have two roots X1 and X2 given by
X1=(-b+square root of Delta)/(2*a)
X2=(-b- square root of Delta)/(2*a)

If Delta is equal to 0, X1=X2=-b/(2*a)
If Delta i negative, no real solutions exist

You only solve if Delta is positive or equal to 0.

Putting in the values of a, b, and c
value of a (put you number) [SHIFT][STO] A
value of b (put your value) [SHIFT][STO] B
value of c (put you value) [SHIF][STO] C

[ALPHA] B [X^2] -4[x][ALPHA] A [x][ALPHA] C [=]
Value of delta is displayed. If it is positive, you store its square root in D

[Square root] [ANS] [SHIFT][STO] D ;

Calculate 1/(2*a) and store in variable F
1./(2[x] ALPHA A) [SHIFT][STO] F

To obtain X1
[ALPHA] F [x] ( (-) ALPHA B + ALPHA D ) [=]
To obtain X2
[ALPHA] F [x] ( (-) ALPHA B - ALPHA D ) [=]

Be careful: the (-) is the change sign not the regular minus sign.

Hope it helps.

Posted on Sep 24, 2009

## Question

• 5,824 People Helped

### PLEASE HOW DO I CHANGE MY CASIO FX-82MS

PLEASE HOW DO I CHANGE MY CASIO FX-82MS CALCULATOR FROM ROUNDING UP ANSWERS.

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Hello,
Use the FIX display format and set the number of decimal digits to be displayed to be 2 o 3 or more depending on your needs. Instructions are on screen capture below. Hope it helps. Posted on Oct 11, 2009

## Question

• 5,777 People Helped

### how to get a Casio out of rounding mode

how to get a Casio out of rounding mode

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Press the MODE key a certain number of times, until you reach a screen that displays FIX SCI NORM and numbers 1, 2, and 3 under them. Press 1 key to select the FIX display format, then enter a number between 0 and 9 to set the number of decimal digits you want to keep in your result. In your case the calculator is already rounding so you should select a reasonable number of digits say 2 to 3.
MODE (a certain number of times ....) 1 (FIX) 3 will keep three decimal digits in the results.

Posted on Sep 15, 2010

## Question

• 4,347 People Helped

### How can I get my

How can I get my calculator out of scientific notation mode? It is a casio fx 300ms

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Please press the Mode button on your calculator repeatedly till you get the following screen
Fix Sci Norm
1 2 3

Norm 1~2?

Press 1 from your keypad and your calculator will be normal again i.e out of scientific notation mode.

Posted on Mar 16, 2011

## Question

• 4,346 People Helped

### how to find ln (inverse

how to find ln (inverse log function) in casio calculater

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The inverse function of the natural log (ln) is the exponential function (e^x). They share the same physical key. One is direct access key and the other is the shifted one: You have to press [SHIFT] to enable it.

Posted on Feb 26, 2011

## Question

• 4,339 People Helped

### how to convert to binary using casio fx-350MS?

how to convert to binary using casio fx-350MS?

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Hello,
In the FX300Ms manual, the same for the FX350MS, there is no way to use base-n (binary, octal, hexadecimal) calculations.
Sorry.

Posted on Sep 25, 2009

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