Question about Casio FX-115ES Scientific Calculator

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It still gives me an incorrect answer. In the calculator I am trying to solve: 1.0*10 -14power / 3.3 *10 -12 power. The answer it gives me is 3.03 *10 to the -27 power. That is an incorrect answer. The answer is 3.03 *10 to the -3 power. That answer would be completely incorrect on the exam. I dont understand what the problem is?

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Apparently you're calculating 1x10^-14 / 3.3x10^12
Note the positive exponent on the denominator. Make sure you use the (-) key to enter a negative exponent.

Posted on Jun 07, 2012


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Posted on Jan 02, 2017


SOURCE: casio fx-83

press mode untill u see FIX and then the numba of decimal places u want

Posted on Nov 09, 2008

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SOURCE: my TI BA ii plus calculator is calculating the

Before each calculation of a TVM problem you must fully clear the calculator ... Press [2ND] [CPT] [2ND] [FV]

Best of luck

Posted on Mar 31, 2010

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SOURCE: How to do standard deviation calculations?

Parameter Value
Mean 500
Standard deviation 100
Left cutoff 400
Right cutoff 600

Probability to the left of the tail 15.87%
Probability in the center 68.26%
Probability to the right of the tail 15.87%

Posted on Jun 21, 2010

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SOURCE: My BAII isnt calculating correctly

Change the payments-per-year to 1 to get the correct answer. Press 2nd [P/Y] 1 ENTER.

To pay off a loan of $3245 at 12% annual interest, you can either make 6 monthly payments of $559.91 and pay it off in half a year or make 6 annual payments of $789.27 and pay it off in six years.

Posted on Nov 26, 2010

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SOURCE: I am currently studying for the CFA Level I exam,

Personally, I'd go with the regular, or the Plus, staying away from the Platinum. There's nothing on the calculator or package to distinguish the Plus from the regular, but the Plus uses two coin batteries while the regular uses three button batteries. The Plus is just like the regular, except a LOT faster.

Posted on Dec 31, 2010

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how about trying solve the issue, by starting backwards, since you know the price, the constant, payment,
or it is not possible to do the figures
either the N or i is wrong PMT could also be incorrect.
i was trying give you some ideas
try changing N or i by 1 digit see what happens.

Oct 07, 2015 | Texas Instruments BA II PLUS PRO BAIIPlus...

1 Answer

I'm using a Ti-84 plus and when I try simple division it gives incorrect answers. For example, when I enter 5/2 it answers 3. When I entered 50/100 it answers 1.

You apparently have your calculator set to display no digits to the right of the decimal point. 5/2 is 2.5, which rounds to 3, and 50/100 is 0.5, which rounds to 1.

To change the display setting, press MODE, highlight the desired settings on the first two lines, then press ENTER followed by 2ND QUIT. Try setting "NORMAL" and "FLOAT" and see what results you get now.

Oct 06, 2013 | Texas Instruments TI-84 Plus Calculator

1 Answer

I am not sure what my calculator is doing I am trying to solve a regular math problem such as (.0011)(2.4) and it keeps giving me 2.64 x 10 to the -03 power

You have your calculator set to give your answer in scientific notation. If you would like it to give your answer in decimal form you need to change the settings. On my calculator which is an older version, you just press [mode] three times. On your screen you will see fix sci and norm as well as the numerals 1, 2 and 3. press [3] on your key pad. You should see norm 1~2? then press [2] on your keypad and this will have changed your settings back to plain decimals.
I hope this helps!

Apr 10, 2011 | Casio FX-300MS Calculator

1 Answer

My calculator does not give the right answer as in the textbook.1-n 12 % 210000 fv but the pv is incorrect ? should be 187500 but i get 207920 ?

207920 is the correct result for one month at 12%, compounded monthly. 187500 is the result for one year at 12%, compounded annually. Set P/Y to 1 and try again.

Feb 08, 2010 | HP 10bII Calculator

1 Answer

My solver is giving me the wrong answers

I have no way of knowing why it is giving you wrong answers. If you have an idea what the answer might be, you should use this knowledge to help the calculator find your solution, either by giving a better guess (initial value) or by restricting the domain of values, instead of -1e99 and 1E99.

It is also possible that you may have set up the problem incorrectly. For this reason I am describing how to use the Solver and the solve( command.

You have two ways to solve an equation with the TI84Plus

  1. The solve( command the syntax of which is solve( expr, var,guess, {lower_limit, upper_limit}). Here expr is the expression (without =0), var is the variable you solve for, guess is you estimate of the solution, lower_limit and upper_limit are the bounds of the domain where you are looking for a solution. Of course your guess must be between theses limits.
  2. The Interactive Solver.
The solve( command

  • The solve command is accessed through the catalog of commands [2nd][0] (CATALOG).
  • Press [LN] (S) to let the cursor jump to the first command that starts with s.
  • Scroll down to reach the solve( command.
  • Select it and press [ENTER]. The command echoes on main screen.
  • Enter the different arguments: expr, var, guess, etc.
  • Close the right parenthesis and press [ENTER].
  • Wait for the solution to be displayed.
The interactive Solver

Press [MATH][0:Solver]. You see what is on the first picture (I entered K-0.5*V^2). Press [ENTER]. You see what is on the right picture.

In the interactive solver you enter a value for all the parameters, constants, for all, save the entity you are solving for, here V. So you must clear the 0 to the right of the = sign after the V. when finished you press [ALPHA][ENTER] (SOLVE).
Here is what I get for the small exemple I chose.

Left -rt=0 shows that the root was found to within the calculator's tolerance.

Hope it helps.
Thank you for using FixYa.

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

1 Answer

Incorrect multiplication

Use the Clear All button to get rid of the junk, then retry.
Hope it helps.

Sep 11, 2009 | Texas Instruments TI-30XA Calculator

1 Answer

Weird Markings on Screen

Try resetting calculator to default configuration.
[2nd][MEM][7:Reset][2:Defaults][2:reset]. Then [CLEAR] screen.
Hope it solves your problem.

Aug 18, 2009 | Texas Instruments TI-83 Plus Calculator

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