Question about Office Equipment & Supplies

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Hi Jezel, the following may assist you.

Trust this helps, regards Alan

http://www.gettysburg.edu/dotAsset/55bbc0c3-e6a8-499a-b316-a3ef71051a1f.pdf

http://www.stat.ncsu.edu/people/reiland/courses/st301/Ticalc.pdf

Posted on Apr 14, 2015

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Posted on Jan 02, 2017

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SOURCE: Graph feature is not working on TI-83

you have one of your stat plots on that is what is messing it up. So either turn off the stat plots. Or just reset your calculator. hit 2nd then the plus (+) key then 7 then 1 then 2. Good luck

Posted on Nov 12, 2008

SOURCE: Graphing

i had the same problem .... just go to apps and go all the way down transfrm and click it then click the uninstall button !!!

Posted on Jun 12, 2009

SOURCE: How do I enter a quadratic equation into my calculator TI 89?

Hello,

What do you want to do with it? If you want just to enter it, you do so on the command line.

Here are exemples of solutions

Under [Mode][F2] exact/aprox set to exact

solve(x^2+x-5=0,x) finds the exact solutions the top ones

Under [MODE][F2] Exact/Aprox set to Approximate you get approximate numerical solutions, the bottom ones.

There is another command nSolve( which solves numerically for an equation. You can specify a range of values where solution is suspected to be.

Hope it helps

Posted on Sep 13, 2009

SOURCE: solving multiple non-linear equations

Type it like this: solve( equation1 and equation2 and moreEquations, {list of variables to solve for})

Put all of your equations right after the opening parenthesis separated by the word *and*, then a comma, then within curly braces each variable you want to solve for each separated by a comma.

Posted on Oct 04, 2009

Just open the Y= equation editor and enter your equation. Use X for T. Make sure the angle unit is in radians.

Nov 10, 2014 | Texas Instruments TI-89 Calculator

You can't simply enter 7x+9=30 into the calculator, there is a way to calculate what the x is but its been a few years since I've done these..

Oct 03, 2008 | Texas Instruments TI-83 Plus Calculator

After you enter the data draw the SCATTER plot first.

When you perform the (linear) regression analysis LineReg, save the regression equation to a function, for example Y1

The syntax is

LineReg L1, L2, Y1 ENTER

From the Stat>CALC menu press LineReg

The command echoes on command line

Press [2nd][1] to enter the L1 list on command line

Press [,] to separate

Press [2nd] [2] to enter L2 on the command line

Press [,] the comma again

Press [VARS][>][Y-Vars][1~Function][1:Y1] [ENTER]

Press [GRAPH] to have the regression line equation drawn

on the same screen as the Scatter Plot you drew before.

When you perform the (linear) regression analysis LineReg, save the regression equation to a function, for example Y1

The syntax is

LineReg L1, L2, Y1 ENTER

From the Stat>CALC menu press LineReg

The command echoes on command line

Press [2nd][1] to enter the L1 list on command line

Press [,] to separate

Press [2nd] [2] to enter L2 on the command line

Press [,] the comma again

Press [VARS][>][Y-Vars][1~Function][1:Y1] [ENTER]

Press [GRAPH] to have the regression line equation drawn

on the same screen as the Scatter Plot you drew before.

Sep 13, 2011 | Texas Instruments TI-84 Plus Calculator

Your assumption

--Next, I should be able to press VARS, move to Y-VARS, select FUNCTION, then select Y-1 and automatically enter the equation into Y-1.-

is not correct.

When you press [STAT[>][CALC][4:LinReg(ax+b)] or any other regression model,the command echoes on the main screen. If you press [ENTER] at this point, the calculator uses by default lists L1 and L2 and displays the resulting equation without copying it in a Y-variable.

If you want to have the equation copied on a Y-function, you should modify the command as follows

LineReg(ax+b) [SHIFT][1: L1] [,] SHIFT[2:L2] [,] [VARS][>:Y-Vars] [1:Function][1:Y-1][ENTER].

Here, [>] stands for RightArrow. For any other regression model, use the appropriate command.

At this point, the command line should look like the following:

LinReg(ax+b) L1, L2, Y1

Press [ENTER] to calculate you get the same screen as when you do not save the equation in Y1, but if you go to the Y= editor or press GRAPH, you will see the regression line superposed on the scatter plot.

--Next, I should be able to press VARS, move to Y-VARS, select FUNCTION, then select Y-1 and automatically enter the equation into Y-1.-

is not correct.

When you press [STAT[>][CALC][4:LinReg(ax+b)] or any other regression model,the command echoes on the main screen. If you press [ENTER] at this point, the calculator uses by default lists L1 and L2 and displays the resulting equation without copying it in a Y-variable.

If you want to have the equation copied on a Y-function, you should modify the command as follows

LineReg(ax+b) [SHIFT][1: L1] [,] SHIFT[2:L2] [,] [VARS][>:Y-Vars] [1:Function][1:Y-1][ENTER].

Here, [>] stands for RightArrow. For any other regression model, use the appropriate command.

At this point, the command line should look like the following:

LinReg(ax+b) L1, L2, Y1

Press [ENTER] to calculate you get the same screen as when you do not save the equation in Y1, but if you go to the Y= editor or press GRAPH, you will see the regression line superposed on the scatter plot.

Jul 13, 2011 | Texas Instruments TI-84 Plus Calculator

Press the TABLE key (to the right of the GRAPH key), then press F1 to select "TABLE".

Mar 29, 2010 | Texas Instruments TI-85 Calculator

Hi,

In the Y= equation editor you can enter two functions, and graph them both or calculate a table for both. However, the two functions will be evaluated at the same values of X.

Rather than trying to guess what is happening, I will show you how to get your two tables.

If you have used one the applications** Inequalz **or **Transform** it si probably still stuck in memory, and you must unload it from the RAM before recovering the usual calculator behavio(u)r

Press [2nd][GRAPH] (Table) to see your 2 tables y1 and y2 calculated at the same X.

Hope it helps.

Thank you for rating the solution.

In the Y= equation editor you can enter two functions, and graph them both or calculate a table for both. However, the two functions will be evaluated at the same values of X.

Rather than trying to guess what is happening, I will show you how to get your two tables.

If you have used one the applications

- Press the [APPS] button, find Inequalz or Transform, point to it and click [ENTER].
- You will be asked to Continue or Quit the application.
- Press the number corresponding to Quit (usually 2).
- Press [2nd][Y=] (STAT PLOT). Press [4:PlotsOff][ENTER]
- Calculator replies Done.

Press [2nd][GRAPH] (Table) to see your 2 tables y1 and y2 calculated at the same X.

Hope it helps.

Thank you for rating the solution.

Dec 10, 2009 | Texas Instruments TI-84 Plus Calculator

As far as I know, the TI-81 doesn't have a degree-minute-second entry mode the later TIs have. But to answer your question, you can always do it as:

35 + 20 / 60

followed by ENTER if needed.

If you're in Radian mode instead of Degree mode, you'd have to follow up with MATH 6 to specify degrees instead of radians.

35 + 20 / 60

followed by ENTER if needed.

If you're in Radian mode instead of Degree mode, you'd have to follow up with MATH 6 to specify degrees instead of radians.

Sep 29, 2009 | Texas Instruments TI-81 Calculator

i had the same problem .... just go to apps and go all the way down transfrm and click it then click the uninstall button !!!

Apr 01, 2009 | Texas Instruments TI-84 Plus Calculator

The tables will not say Y specifically, they only say L1, L2, L3, etc. UNLESS you type in an equation in the "Y=" button menu. When you type an equation in on that page, and then hit "2nd" "GRAPH", you will get X and Y values for that equation.

Jan 19, 2009 | Texas Instruments TI-83 Plus Calculator

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