Question about Texas Instruments TI-84 Plus Calculator

# How do you input Y values into a table once you have input X values? I want to use this table to graph a line.

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Posted on Jan 02, 2017

This usually happens after the statistical graphs have been used. You should deactivate them. Press [2nd][Y=] (STAT PLOT). Select [4:PlotsOff] [ENTER]. Calculator echoes Done on main screen.

Posted on Dec 28, 2009

That is normal behavior. The log functions are not defined if the argument (x value ) is negative.

Posted on Mar 24, 2010

I believe I already showed you with a profusion of details how to graph functions on the calculator. It would very kind of you to refer to the post that answered your question, so as not to make us answer it all over again. Much appreciated.

Read the following to use the intersection function.

1. You draw two or more graphs.
2. After the graphs are displayed, press [2nd][TRACE] to access the (CALC)ulate menu.
3. Select [5:Interesct]
4. You will be prompted for a first curve: the equation of the curve will be displayed at the top left corner of the screen. If it is one the intersecting curves, press [ENTER]
5. You will be prompted for the second curve. (You can move from one curve to another by pressing the UpArrow or DownArrow).
6. After two curves are selected, you will be prompted for a guess for the X-value of an intersection point: you can use the keypad to enter a guess or use the left or right arrow to move the cursor towards a point of your choosing (if there are more than one point).
7. After a short while the calculator gives you a solution.
8. If it fails, you must make a better guess.

Here are some screen captures

Posted on May 16, 2010

Testimonial: "Thank you so much for answering this and my previous one, it is really very kind of you.I am sorry for being so stupid with the calculator. I can work this out manually but can never manage to get the right information on the calculator despite using a book called Tapping in Mathematics. Thanks to your very clear explaination, it seems so easy now. "

Press the MODE button.
Use down arrow to move cursor to the line that has Full HORIZ G-T.
Use left arrow to highlight FULL, and press ENTER.

Posted on Aug 15, 2010

SOURCE: The X-Values in the Table

What are you trying to do? You drew a graph, then you cleared the function graphed and went to the table to see if the X values have disappeared and they did not.Right?

By pressing the [SHIFT][(TABLE) key you were in fact commanding the calculator to generate a table for a function but you did not supply (nothing in Y= editor), and the calculator faithfully obeyed you. It looked at the Xmin of the window, looked at the Xscl factor and generated a blank table that contains all the X-Coordinates (where your function or table would have been calculated had you entered a valid expression in the Y= editor). That is how it works.

Posted on Aug 29, 2010

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## Related Questions:

### Graph parabola

This is not a graphing calculator. You can however use the TABLE feature to generate a TOV (table of values) which you will represent on graph paper.

Nov 09, 2013 | Casio Brand New-Fx-82au Plus - Scientific...

### My TI-84 will graph but it will not show me the table of values. It just shows up blank.

Enter the function using the Y= editor. Pressing [ 2nd ][Graph] (table) will display the table. You can then press [GRAPH] to see the grapg. If you want both graph and table side by side use the split screen feature.
To do so press [Mode]. Scroll down to the last line Full Horiz G-T. Highlight the option G-T. Press the Graph key.

Sep 24, 2013 | Texas Instruments TI-84 Plus Calculator

### The Y-values listing is missing under the [2nd] graph button. Only the

If you want the table to be generated, you must use the table feature. You can generate a table also after you draw (graph) a function.
Enter a function in the Y= editor, then press GRAPH or SHIFT GRAPH (TABLE). If you press GRAPH, you will see a graph. If you want the table and are not interested in the graph, press SHIFT TABLE.

Mar 25, 2012 | Texas Instruments TI-83 Plus Calculator

### Can not bring back the option to graph on the Y axis in the table mode of a TI-84 plus calculator. The entire column to input values into the Y axis of the table is deleted.

If the table has been created by entering a function in the Y= editor, then you can generate the table by just inserting the function again and pressing Table or Graph. If it is some (statistical) table you entered manually and where you chose the x and the corresponding y, then you will have to retype it again. Sorry

Sep 12, 2011 | Texas Instruments TI-84 Plus Calculator

### I have a TI 84 plus and when I hit second graph it goes to table where I can insert y values. by accident erased my Y values and only have the x column. Can I get the Y values back?

If you have a function that generated the table, you can recreate both columns again. Just enter the function, then press SHIFT GRAPH. The table will be regenerated.
For values you entered yourself there is no way to recover them. You will have to reenter them again.

Sep 02, 2011 | Texas Instruments TI-84 Plus Calculator

### I am working on an independent study. The problem I am trying to tackle is having my CEENBot step though a function that is inputted by the user. However, I am not sure how to input a graph from the user....

A function can be entered into a function as a parameter. For example if you named your function CEENBot you would ask for a parameter in the header like this:

CEENBot()
Func
:
EndFunc

the parameter can be any type of variable, but it must match the type entered when it is used, so you can't be telling the calculator you entered a function and trying to use rref( on it

To your second question the calculator does generate a table, however it's not really accessible (as far as I know) from a program/function. The table can be viewed by pressing (Diamond)+F5 but it only handles functions that are graphed. You can manually create a table if you want by using the function (for this example y1) with and giving it a list of X values (for this example listx) to output a list of Y values (yep, this one is listy)

y1(listx)->listy

from there you can construct your own table

Aug 05, 2011 | Texas Instruments TI-89 Calculator

### The X-Values in the Table for a graph wont reset, i have deleted the equation and there is no graph plotted, however they wont disappear. Also, i tried accessing the X on the top of the table, and it did...

What are you trying to do? You drew a graph, then you cleared the function graphed and went to the table to see if the X values have disappeared and they did not.Right?

By pressing the [SHIFT][(TABLE) key you were in fact commanding the calculator to generate a table for a function but you did not supply (nothing in Y= editor), and the calculator faithfully obeyed you. It looked at the Xmin of the window, looked at the Xscl factor and generated a blank table that contains all the X-Coordinates (where your function or table would have been calculated had you entered a valid expression in the Y= editor). That is how it works.

Aug 28, 2010 | Texas Instruments TI-84 Plus Calculator

### Some y values in my table say error when i graph logs

That is normal behavior. The log functions are not defined if the argument (x value ) is negative.

Mar 23, 2010 | Texas Instruments TI-83 Plus Calculator

### To Guru K24674 Hello I have corrected the problem I had, you see the domain function that I have commented about does work within the calculator. You input the domain of the function after the Function...

Here is a solution.

Graph the function over the domain [-Pi,+Pi]
Then press the [SHIFT][MENU] (SETUP) and in option [Dual Screen] select [G to T] Graph to table. The screen will be spilt in two, but the Table part remains empty.
Press [SHIFT][F1] (TRACE), the cross hair appears on screen.
Move it around on the curve
If you press [EXE] at a cross hair location, the table records the X and Y value. On the following screen capture, the exponential function is graphed along with sin(X) and the table is populated by selected values of the exponential.

Now rate all the solutions I provided for you

Feb 25, 2010 | Casio CFX-9850G Plus Calculator

Hello,
Sorry if you already know that, but I want to make sure we understand one another.

Say you want to graph the function Y1=2X+3.
You press [MODE] to make sure that the FUNC on 4th line is highlighted permanently. If it is you press [Y=]

On the first line where it says Y1= you enter 2*[X,T,Theta,n] +3.
The X is accessed with the key to the right of the [ALPHA] key.
As you key in your function, notice that the equal sign after Y1 is highlighted and remains so. When you finish entering the function press [ENTER] so that the cursor moves to the line Y2=. Make sure that the = sign after the Y1 in previous equation remains highlighted.

You can now draw the graph by pressing [GRAPH] or generate the table Y1=f(X) by pressing [2nd][TABLE]. Under no conditions should you enter YOUR own values. If the table does not appear there may be a problem, and you will not solve it by entering values.

Now let us try to get you calculator to work as it should.

Press [2nd][STATPLOT][4:PlotsOff] , the command PlotsOff echoes on main screen. Press [ENTER] to turn statistical plots OFF. Screen displays Done.
Press [2nd][CATALOG] [ENTER]. The list of all avilable command appears. Scroll down till you reach ClrAllLists. Move arrow to the correspondig line and press [ENTER] , command echoes on main screen as ClrAllLists. Press [ENTER] to erase all old statistical lists that may be stored in the calculator memory.

Now you are ready to graph or create the table of values. Press [2nd][Table] and the table should be displayed. All you can do with the values in the table is to look at them, examine them. You cannot modifie nor erase them.

If, for reasons of your own, you think you ought to be allowed to enter YOUR values, in the table, then this is not graphing functions. The name for that is DOING STATISTICS. And the procedure is tottaly different: You enter YOUR values in lists and use the calculator to draw the data points, and to find the best fit (the curve that models the pattern of data distribution best). When you decide which fit is the best, you can use the calculator to extract the equation for the curve and, if you want it, to draw the curve on the same graph where you raw data is represented.
Hope these clarifications helps.

Before jumpin

Oct 07, 2009 | Texas Instruments TI-84 Plus Calculator

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