Have a TI BA11 calculator that isn't showing decimal numbers. How do I fix it

In the home screen press the MODE button. On the line display digits choose the number of decimals you want. Here is screen capture from a TI Voyage 200 PLT.

Press 2nd [FIX] and then select from the menu a digit specifying the number of places after the decimal point or F specifying floating point.

You will readily agree with me that there is surer source of information than the guide book. Here is a link to it.

First of all, the "1/x" key isn't the fraction key, it's "1-over-x." Pressing 3 1/x divides 1 by 3, giving you 0.33333333 .

If you want to enter a fraction, use either "a b/c" or "d/c," located just to the left of the 1 key. You can convert between decimal and fraction with "F--D" just below that.

Press 2nd [FIX] to bring up the display menu. You can select the number of digits after the decimal point, or "F" to select the floating decimal display.

To do this you need to set your calculator to a fixed decimal value. You can do this by Pressing 2nd + FIX (decimal point) and then setting it to 0 decimal places. This will round a number to the nearest whole number.
Hope that helps.

Press 2nd [FIX] and then select the desired number of decimal digits to the right of the decimal point.

An alternative is to press 2nd [SCI/ENG] and then select "FLOAT".

Press 2nd [FIX] then the number of digits you want to the right of the decimal point. [FIX] is on the decimal point key.

Hello,
Your TI81 can only perform numerical calculation: It always give uour numbers. The TI89, a more sophisticated calculator, can of course do numerical calculation, BUT ALSO symbolic ones. You ask it for the derivative of sin(x) and it will give you cos(x).
Anyway, if you want a decimal result for you calculation above one of the numbers must have a decimal point (instead of writing 2PI write 2.PI.

The TI 89 can do exact calculations. But if you want approximate results any number in the sequence of operations must have the mark of a decimal. Numbers without decimal marks are considered integers, Integer numbers with a decimal mark are treated as floating point numbers ( meaning decimal).

Hope it clarifies things for you.

You have to set how the calculator handles numbers. To do this follow these steps: 1. Press the 'MODE' button. This brings up the calculator's main settings page. 2. Scroll down until you reach a field titled 'Exact/Approx...'. This is the setting for how the calculator handles numbers, whether it will show the exact answer (which is usually in fraction format) or whether it will show an approximate number (which will be in decimal format). 3. Press the right arrow which will bring up the options for that setting. You must now choose between three ways of handling numbers: -'1:AUTO' will determine which type of answer the calculator will give based on what numbers you want it to calculate (e.g. if you want an answer in decimal format just add a decimal somewhere in your problem). -'2:EXACT' will automatically display all answers in either whole number format or in fraction format. -'3:APPROXIMATE' will automatically display all answers in decimal format. 4. After you have selected one of those options press enter one more time to get out of the 'MODE' dialogue and return to the 'HOME' screen. Now try a problem and see what happens. Personally I like using 'AUTO' because then I don't have to keep returning to 'MODE' when I want either or. Hope this helped, I had the same problem when I first started using the TI-89.