Question about Casio fx-300ES Calculator

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Casio fx-83 ES Alpha Function

How do I use the Alpha function to assign a value to a letter?

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  • Anonymous Oct 30, 2008

    yeah i see the alpha button just dont know how to assign a letter to it, does not explain it in the manual. I have a fx-115 es model



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Know one really knows that stupid thats why no one is answering this but they r answering everyone elses

Posted on Sep 13, 2008

  • nahumadhanom Sep 13, 2008

    im just kidding.................... if ur looking 4 the alpha button look beside the big button that moves east,north,south,west

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How do i enter linear equations on my casio fx-115es? 3p+6=10+2p


You can enter equations of any type. Read the rest of the post. Keep in mind that if you are using the Solve( function X must be the unknown. If you are using the Table computational mode, X is the independent variable and Y the dependent one.

The variables you have at your disposal in this calculator are
A, B,C,D,X,Y,M. All of them are accessed by pressing the [ALPHA] key before the key near which is written the name of the variable. You will notice that the markings of the symbols accessed with the [ALPHA] key are of the same color as that of the [ALPHA] key.

You will notice also that there are two = signs.
The one at the bottom right executes the command line. By pressing it you find the result of the expression just entered.

The other = sign is marked on the body of the calculator with the same color as the [ALPHA] key. It is located at the top left of the keyboard (excluding the row with SHIFT, MODE, the navigation buttons)

Example to enter X^2-2X-35=0 you proceed as follows.
Direct access physical keys are in [ ],
[ALPHA] (X) [X to power 2] [ - ] [2] [ * ][ALPHA][(X) [ - ] [3][5] [ALPHA] (=) [0]

Usually when you enter such an expression it is with the intention of solving it for X. By default X is taken to be the UNKNOWN. You will be prompted to enter the value assigned to any other letter symbol (Y, A,B,C,D).

So, if you want to use the Solve function, you enter the equation you are dealing with, and before pressing anything else, press [SHIFT] [CALC] and the calculator will ask you a question: "Solve for X?" , and you press the = sign at the bottom right.
Then you will be prompted for any other non-X letter. Once all non-X variables (if any) are given values, the calculator will return with the solution. You will see on the screen L-R= (should be zero if you are lucky).

Nov 11, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

How to find derivatives using fx115-es


The syntax of the command is
4aa123f.jpg
where function is the expression you are differentiating
x is the value of variable x at which you are evaluating the derivative, and tol is the tolerance (the error) you are willing to tolerate in the result.

If you do not want to specify a tolerance just omit the last comma and tol.

To enter the command d/dx you use key sequence [SHIFT][Integral]
To enter the symbol x in the expression you press [ALPHA][ ) ]
To enter a comma you use [SHIFT] [ ) ]
To enter a power of 10 in the tolerance use [x10^X] key

Example : Calculate
18c49ac.jpg
The key sequence is as follows
[SHIFT] [Integral] 3 [ALPHA] [ ) ] [X^2] [-] 5 [ALPHA] [ ) ] +2 [SHIFT] [ ) ] 2 [SHIFT] [ ) ] 1 [x10^X] [(-)] 12 ) [=]

DO NOT confuse [SHIFT] [ ) ] which enters the comma and [ALPHA] [ ) ] which enters the variable X

Oct 29, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

I just started a college algebra class and was hoping to use this calculator i just purchased to help me out (casio fx-300es natrual display) i was wondering if you have any videos on how to use this...


The variables you have at your disposal in this calculator are
A, B,C,D,X,Y,M. All of them are accessed by pressing the [ALPHA] key before the key near which is written the name of the variable. You will notice that the markings of the symbols accessed with the [ALPHA] key are of the same color as that of the [ALPHA] key.

You will notice also that there are two = signs.
The one at the bottom right executes the command line. By pressing it you find the result of the expression just entered.

The other = sign is marked on the body of the calculator with the same color as the [ALPHA] key. It is located at the top left of the keyboard (excluding the row with SHIFT, MODE, the navigation buttons)

Example to enter X^2-2X-35=0 you proceed as follows.
Direct access physical keys are in [ ],
[ALPHA] (X) [X to power 2] [ - ] [2] [ * ][ALPHA][(X) [ - ] [3][5] [ALPHA] (=) [0]

Usually when you enter such an expression it is with the intention of solving it for X. By default X is taken to be the UNKNOWN. You will be prompted to enter the value assigned to any other letter symbol (Y, A,B,C,D).

So, if you want to use the Solve function, you enter the equation you are dealing with, and before pressing anything else, press [SHIFT] [CALC] and the calculator will ask you a question: "Solve for X?" , and you press the = sign at the bottom right.
Then you will be prompted for any other non-X letter. Once all non-X variables (if any) are given values, the calculator will return with the solution. You will see on the screen L-R= (should be zero if you are lucky).

Oct 27, 2010 | Casio fx-300ES Calculator

1 Answer

On a casio calculator how do you assign a number to the alpha functions. This could be useful, but no one seems to know. If you can't, what can you do with these letters. Maybe solving equations, but if so...


You can store values in the memory locations A,B,C,D,X and Y. To access these variables, you must precede the key by pressing [ALPHA]. Thus to access Memory variable A press [ALPHA][(-)].

To store a number in memory A Press [SHIFT][RCL] (STO) . When you use the shifted key to store no need to press [ALPHA].
To recall the contents of memory A, just press [RCL] followed by [(-)]. No need to press [ALPHA]
Say you want to calculate 3 5 and assign value to memory A
3 5 [SHIFT][RCL] [(-)] A.
Similar sequences for B,C,D, X, and Y.

I am not sure about the Casio FX300ES but the FX-991ES does have a solver mode. On that calculator, to enter the = sign in an algebraic equation use the [ALPHA] key followed by a key on the top left of keypad ( Could be CALC).

I suggest you refer to the manual for the calculator for examples of use for the memory keys. Look in the separate Appendix too.

Oct 19, 2010 | Casio fx-300ES Calculator

1 Answer

How to change polar form to rectangular form by calculator?


Use the Rec function (shift of the - key).

Rec(r,t) converts a polar value of magnitude r and angle t in the current angular mode. The real value is assigned to X and the imaginary value is assigned to Y.

Use the Pol function (shift of the + key) for the reverse.

It's on page E-37 of the manual. If you've misplaced your manual, you can download a new one from http://www.casio.com/support/manuals

May 28, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

How do you enter or solve for x? ex: 4/5 x = 6


Take the time to read the whole post. It explains the use of variables on the calculator. The use of the solve( function is at the end of the post.

The variables you have at your disposal in this calculator are
A, B,C,D,X,Y,M. All of them are accessed by pressing the [ALPHA] key before the key near which is written the name of the variable. You will notice that the markings of the symbols accessed with the [ALPHA] key are of the same color as that of the [ALPHA] key.
You will notice also that there are two = signs.
The one at the bottom right executes the command line. By pressing it you find the result of the expression just entered.

The other = sign is marked on the body of the calculator with the same color as the [ALPHA] key. It is located at the top left of the keyboard (excluding the row with SHIFT, MODE, the navigation buttons)

Example to enter X^2-2X-35=0 (not your expression)
Direct access physical keys are in [ ],
[ALPHA] (X) [X to power 2] [ - ] [2] [ * ][ALPHA][(X) [ - ] [3][5] [ALPHA] (=) [0]

Usually when you enter such an expression it is with the intention of solving it for X. By default X is taken to be the UNKNOWN. You will be prompted to enter the value assigned to any other letter symbol (Y, A,B,C,D).

So, if you want to use the Solve function, you press [SHIFT] [CALC] and the calculator will ask you a question: "Solve for X?" , and you press the = sign at the bottom right.
Then you will be prompted for any other non-X letter.

May 14, 2010 | Casio fx-300ES Calculator

1 Answer

How do you get on second function on a calculator


Use the Shift key or the Alpha key to type letters. If there are two symbols near a key,on the body of the calculator, the symbol to the left is accessed with SHIFT, the one to the right with ALPHA. On certain calculators symbols are color-coded.

Jan 31, 2010 | Casio FX-9750GPlus Calculator

1 Answer

CASIO fx-300ES


Storing
  1. To store numerical values in the variables A,B,C,D,X,Y and M you use the [SHIFT][RCL] key combination to access the (STOre) function.
  2. In what follows [ key] is the physical key and (key) is the SHIFTED key
  3. ex: store the value 13 in variable A
  4. 13 [SHIFT][RCL] (STORE) [(-)] (A)
  5. The calculator displays 13 --> A on top line and 13.000.. on bottom line.
Recalling
  • To recall a value stored in a variable ex: recall value stored in variable A
  • Press [RCL][(-)] (A)
  • Calculator displays A on top line and 13 on bottom line.
If you need to use the variables A,B,C,D,X,Y, and the = sign to create an expression to be solved with the solve( function you must press the [ALPHA] key

=: [ALPHA] [CALC](=)
A: [ALPHA][(-)] (A)
B: [ALPHA][ 0 ' "] (B)
X: [ALPHA][ ) ] (X)
Y:[ALPHA][S<=>D] (Y)
etc.

Jan 05, 2010 | Casio fx-300ES Calculator

1 Answer

How do I use the memory function for my fx-115 es calculator


Hello,
You have 7 memory registers, namely A, B,C, D, X, and Y.
To store a value in say register A you press [SHIFT][RCL] (STO) A. The (STO) is the function you acces when you press [SHIFT][RCL].

Thus
23 [SHIFT][RCL] A displays 23 -->A and the value is shown on the bottom of the screen.

To recall a value from register A, you press [RCL] A.
Hope it helps.

Nov 04, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

Integral of sinx how to calculte in casio fx991 es


Hello,
Configure the calculator to be in MathIO : [SHIFT][MODE][1:MathIO].
Press the Integral key, the one judt beloe the [ALPHA] key.
The template of the integral appears, with the cursor in larger rectangle. Enter the function the screen displays the integral, a small upper sqaure, and a small lower square. The left parenthesis of the function is already supplied by the calculator.
Press [ALPHA] X to enter the argument of the function.
Press the right parenthesis.
Remain the limits.
Use left arrow to move the cursor just before the s of sin and press down arrow to enter a numerical value for the lower limit.
Press the up arrow to move cursor in upper square.
Key in the numerical value of the upper limit.
Press [=].

Warning. To have meaningful result, make sure the angle unit used is conform to the problem you are trying to solve.

Hope it helps.

Nov 01, 2009 | Casio FX-300MS Calculator

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