Question about Casio Rare Vintage Scientific Calculator Fx-4800p 4 Line Dot Matrix Lcd

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Posted on Jan 02, 2017

SOURCE: how to calculate log value in calculator with different base value

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

SOURCE: how to solve rational equations on my casio fx

Hello,

You must first eliminate the denominators by reducing the different expressions to the same denominators. Use the distributivity property of multiplication to expand your terms. Gather similar monomials. Do all the cleaning to reduce your equation to one of the 2 types that the calculator can handle.[Mode][5:EQN] [3: ax2+bx+c] or [4:ax3+bx2+cx+d]

**Remember :Any solution that makes one of the original denominators equal 0 must be rejected.**

**Hope it helps.**

Posted on Sep 12, 2009

SOURCE: Hi, I have a Casio calculator fx-991MS giving me wrong answers!

Hello,

I am only looking for a plausible cause of the error, because I do not believe your calculator can make such a mistake. I think you **accidentally activated the Exponential display format** and did not pay attention to the small, raised -03 that came at the end of the number displayed. It is a common mistake for those not very familiar with Scientific or exponential notation.

Let us try to reset your calculator to the normal (floating point) format.

Press the [MODE] key a number of times until you reach a screen that has FIX, SCI, NORM and under each one a number (FIX 1, SCI 2), Norm 3). To have the number of decimal place you gave in your result (4 decimal digits), you press 1 to select Fix then 4.

Be aware that scientific calculators usually stop displaying results in floating point format ( 0.0000045 ) if the number is smaller then 0.001. So basically, 0.00099 will be displayed as 9.90-04, -04 being raised above the level, and in smaller size.

Hope it helps.

Posted on Oct 02, 2009

Testimonial: *"Thanks so much, its working now:) I thought I was going to have to buy a new calculator!"*

SOURCE: How do I graph an equation such as y= 5x + 2?

Hello,

Turn calculator ON. If you do not see several icons press [MENu].

Use arrow to select the [GRAPH] application and press [EXE].

In the entry screen, the line with Y1= is highlighted. If it is not, use arrow to highlight it.

Press the right arrow, the highlighting disappears leaving you with Y1= and the blinking cursor.

At the position of the cursor enter 5 [X, theta,T] key under the [ALPHA]. On the screen appears 5X, complete you equation +2.

Press [EXE] to store function.

If you want to draw other functions, it is time to do so on that screen.

When done press [F6:Draw}.

If the screen does not show a lot of the function, you can use the arrow keys to pan the graph.

You can also press [SHIFT][V-Window] to set the window limits.

Hope it helps.

Posted on Oct 11, 2009

Testimonial: *"Thank you so much!!!"*

SOURCE: Casio fx-7400G PLUS cubic solver?

Hi,

First let us repair the terminology.

- You can evaluate any expression (find the value of any expression for a particular value of its variable).Store a value in the variable, say X. Key in the expression and press [EXE].
- You can consider your expression(should not contain a relational operator such as =, greater than, less than, greater than or equal to, less than or equal to) to be a function Y1(x) = expression and graph it, or generate a table for it. You will have several values of the function calculated at various points.
- You can set your expression equal to 0 and find the particular value(s) of the variable (the unknown) that make the equality TRUE. That is called solving an equation.

Hope it helps.

Thank you for using FixYa and for rating this solution.

Posted on Dec 03, 2009

https://www.youtube.com/watch?v=rCVM6RWMjQ4

Jan 7, 2015 - Uploaded by Yabets Jab

In this video you can simply understand how to find a value of a given missing number in a table on Casio fx ...Missing: 4800p

https://www.youtube.com/watch?v=OGmHagjZPjg

Oct 31, 2012 - Uploaded by cpobyrne1

How to perform a linear regression on a Casio scientific calculator. Example uses a ... A Casio fx-83WA calculator is used for the demonstration. .... Lagrange Interpolation Easily Explained on Casio fx-991ES Calculator!Missing: 4800p

Jan 05, 2016 | Casio Office Equipment & Supplies

The capability of these calculators to handle irrational numbers in radical form is limited to square roots. Roots of index other than 2 are always displayed in their decimal representation.

If the calculator IO mode is set to MathIO, square roots will be displayed with the radical symbol. More complicated expressions with square roots might not be preserved and will be given as decimal numbers.

If the calculator IO mode is set to MathIO, square roots will be displayed with the radical symbol. More complicated expressions with square roots might not be preserved and will be given as decimal numbers.

Oct 31, 2012 | Office Equipment & Supplies

Your question (?) is not clear so I will not try to guess what you really mean.

Be it as it may, the Casio FX-9860G SD can solve a polynomial equation of degree 2 or 3 with REAL coefficients. If the complex MODE is set to REAL it will find the real roots. If the complex mode is set to** a+ib**, it will find the real and complex roots.

Apparently it will take coefficients that are real, and will give a Ma Error if any coefficient is complex.

Be it as it may, the Casio FX-9860G SD can solve a polynomial equation of degree 2 or 3 with REAL coefficients. If the complex MODE is set to REAL it will find the real roots. If the complex mode is set to

Apparently it will take coefficients that are real, and will give a Ma Error if any coefficient is complex.

Mar 16, 2012 | Casio FX-9750GPlus Calculator

You do not need a calculator for this proportion.

For a proportion a/b=c/d, the product of the extrems (a*d) is equal to the product of the means (b*c).

In your case x*x=8*8 or x^2=64.

The two solutions are x=+square root (64) or x=-square root(64).

For a less trivial equation, you can use the**solve** feature of the FX-119ES. To do so, use the ALPHA keyboard to enter your equation; once the equation is typed in, do not press the main equal sign, but the Solve key (the key is located near the top left corner of the keyboard). You will be prompted to solve for X?.

For a proportion a/b=c/d, the product of the extrems (a*d) is equal to the product of the means (b*c).

In your case x*x=8*8 or x^2=64.

The two solutions are x=+square root (64) or x=-square root(64).

For a less trivial equation, you can use the

Feb 24, 2012 | Casio FX-115ES Scientific Calculator

3.28 squared is 10.7584 .

10.7584 times 40 is 430.336 .

It appears your calculator is correct. I get the same result on multiple calculators, as well as by hand.

Let's work this backwards:

431.8 divided by 40 is 10.795 .

The square root of 10.795 is about 3.28557 .

10.7584 times 40 is 430.336 .

It appears your calculator is correct. I get the same result on multiple calculators, as well as by hand.

Let's work this backwards:

431.8 divided by 40 is 10.795 .

The square root of 10.795 is about 3.28557 .

Feb 01, 2012 | Casio FX83ES Scientific Calculator

No it cannot factor. It does not do symbolic manipulations.If you know a bit of theory of polynomials you can find the roots of the polynomial equation. The calculator has a Solve utility. Once you have the roots, you can use your knowledge about polynomials to carry out the factorization procedure.

Aug 31, 2011 | Casio fx-300ES Calculator

Press MODE 5 to bring up the equation types. Press 3 for the quadratic. Enter the three coefficients. Press = to see the first root. If the display shows x1 then press down to see the other other root. If the display only shows x then that's a double root. Given the two roots x1 and x2, the factors of the quadratic are (x-x1) and (x-x2).

Refer to "Equation Calculations" on page E-55 of the manual and examples #094 and #095 in the appendix for examples of solving quadratic equations. If the you need the manual and/or appendix, you can download them from

http://support.casio.com/manualfile.php?rgn=1&cid=004001004

Refer to "Equation Calculations" on page E-55 of the manual and examples #094 and #095 in the appendix for examples of solving quadratic equations. If the you need the manual and/or appendix, you can download them from

http://support.casio.com/manualfile.php?rgn=1&cid=004001004

May 11, 2011 | Casio FX-115ES Scientific Calculator

Sorry, but no! it is not capable of factoring anything. It can however solve for the roots of a polynomial equation.Write your polynomial as P(X)= a(X² +(b/a)X+c/a) =0. Use the calculator to solve the polynomial equation X² +(b/a)X+c/a =0 and find the roots X1, and X2. You will then be able to write the original polynomial as P(X)=a(X-X1)(X-X2). Beware that by using the calculator, the values of the roots are approximate.

Mar 14, 2011 | Casio fx-300ES Calculator

Hello,

The Casio FX-300ES does not handle symbolic algebra. So it cannot factor a general polynomial expression. The methods can be found in any book on Algebra.

However if you are interested in approximate factorization of quadratic and cubic polynomials, you can use the calculator to do that. It can solve aX^3 +bX^2+cX+d =0 and the quadratic equations.

If you want to factor a cubic polynomial P3(X) = aX^3+bX^2+cX+d , you write the corresponding cubic equation as**aX^3+bX^2+cX=d =0** , then you divide all terms of the equation by** a** to obtain

**X^3+(b/a)X^2+(c/a)X+(d/a)=0.**

You use the calculator to solve (approximately) this equation.

Suppose you find the 3 roots**X1,X2,and X3.** Then the polynomial X^3+(b/a)X^2+(c/a)X+(d/a) can be cast in the factored form (X-X1)(X-X2)(X-X3) and the original polynomial P3(X) can be written as

**P3(X) = a*(X-X1)(X-X2)(X-X3) **

You can handle the quadratic polynomial the same way.

P2(X) =a*(X-X1)(X-X2) where X1, X2 are the two real roots

Hope it helps.

The Casio FX-300ES does not handle symbolic algebra. So it cannot factor a general polynomial expression. The methods can be found in any book on Algebra.

However if you are interested in approximate factorization of quadratic and cubic polynomials, you can use the calculator to do that. It can solve aX^3 +bX^2+cX+d =0 and the quadratic equations.

If you want to factor a cubic polynomial P3(X) = aX^3+bX^2+cX+d , you write the corresponding cubic equation as

You use the calculator to solve (approximately) this equation.

Suppose you find the 3 roots

You can handle the quadratic polynomial the same way.

P2(X) =a*(X-X1)(X-X2) where X1, X2 are the two real roots

Hope it helps.

Sep 27, 2009 | Casio fx-300ES Calculator

Use the key that is 3 keys below the ALPHA button. You must press that key, then place the number or equation you are trying to get the square root of.

Apr 13, 2009 | Casio FX-115ES Scientific Calculator

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