Top 20 Texas Instruments TI-84 Plus Calculator - Page 3 Questions & Answers

The ERR:INVALID DIM error message may occur if you are trying to graph a function that does not involve the stat plot features. The error can be corrected by turning off the stat plots. To turn the stat plots off, press y ,and then select 4:PlotsOff. • You specified a list dimension as something other than an integer between 1 and 999. • You specified a matrix dimension as something other than an integer between 1 and 99. • You attempted to invert a matrix that is not square.

You may be in a wrong MODE. But even in any computational mode you should be able to do simple operations.

Press 2nd then TAN

Cost of buttons 0.70*1100 $ Revenue =4*1100 $ Profit = revenue -cost. Your turn.

Press LOG 3 ENTER. The LOG key on the keyboard gives you base-10 (common) logs while the LN key gives you base-e (natural) logs. If you want the log to another base you can use the logBASE function found in the catalog.

Press the MODE button, press down-arrow to get to the second line, use left/right arrows to highlight the desired number of digits, press ENTER, then press 2ND QUIT.

To save energy.

In order to select additional graphs, the Transformation Graphing Application will need to be uninstalled from the TI-83 Plus Family and TI-84 Plus Family. Uninstalling the Application does not erase it from the calculator, it disables it from interfering with the normal graphing modes. Below are the steps to successfully uninstall the Application. • Press [APPS] key • Select Transfrm from the menu • Press 1:Uninstall See cap images below

The second button may have different markings: 2ndF, or Shift, very rarely INV

Press 1 2ND [EE] 9 9 EE is the second function of the , key, just above the 7 key.

What's the determinant of the numbers in matrix A? A singular matrix is a matrix whose determinant is zero.

You must be doing it without paying attention.

The transform application is still in memory. Press APP, then Transform. Choose Uninstall.

The function of that button depends on the current graph mode. It will give you the "n" only in the SEQ mode. Press MODE, cursor down to the "FUNC PAR POL SEQ" line, highlight "SEQ", press ENTER 2ND QUIT. Now pressing that button will give you the "n".

Press 2ND [TEST] 3. TEST is on the MATH key, two keys down from the 2ND key.

Press 1 SHIFT EE (-) 9 EE is the shifted function of the "," key, just about the "7" key. (-) is just below the "3" key.

Question not clear. Use the definition of sec(x)=1/cos(x).

The TI-84 is a bit of a pain this way. You need to access the logBASE function either through the catalog or the MATH menu. You can't spell the function name as with some other calculators. Press MATH, scroll down to the logBASE entry, then press ENTER. This will put "logBASE(" into the entry line. You can then enter the arguments and press ENTER to calculate the result. For example, to calculate the log base 2 of 8, press MATH, down-arrow a number of times to logBASE, press ENTER 8 , 2 ENTER. This should give you 3.

Press 2ND [TEST] 1. TEST is the shifted function of the MATH key.

If your equation can be written in the form of a function (y=f(x)), the slope of the function at a point is the derivative of the function at the point. For any function that is not a constant or linear, you need calculus to find the slope. If the function is of the form y= ax +b, the slope is the value a.