Casio FX-7400G Plus Calculator - Answered Questions & Fixed issues

Use the direction keys to cycle through the menu items, or the number keys. Once an application has been selected you will be able to use other keys.

Follow the programming instructions in chapter 8 of the user manual. If you need a copy, download from here: http://support.casio.com/manualfile.php?rgn=5&cid=004002008

The only repairs that can be done is the replacement of the batteries. Any other repairs will be simply too expensive considering these are hand units. At one time I made a good living repairing calculators but as the replacement cost went through the floor so did my job out the door.

Here is a link to planet.Casio a French site that has some games for the FX-7400. Look for some programs called TETRIS.http://www.planet-casio.com/Fr/programmes/voir_un_programme_casio.php?typ=a6&calc=2

Here is a link to planet.Casio a French site that has some games for the FX-7400. Explore.http://www.planet-casio.com/Fr/programmes/voir_un_programme_casio.php?typ=a6&calc=2

(9xcos9x-1)/x

Most calculators (except perhaps the TI89) can't do this sort of simplification, so you will need to factorise the number yourself to get sqr(200) = sqr(2*100) = sqr(2) * sqr(100) = sqr(2) * 10.

Here is the link to the different chapters in the manual. If you want the manual in Spanish here it is. .

What is the question?. If you want to learn how to program it, you should download the manual from world casio site. Select calculators, manuals.If you are looking for programs to run on the calculator, check this web siteIt has a collection of activities with program listings you can enter on the calculator.

Well, the calculator has a limited display screen. If a result exceeds the display capabilities of the calculator it is displayed in scientific notation. If the number is larger than 69 the calculator is not able to calculate its factorial.If you are using some of the combination and permutation functions it is better to use the keys dedicated to them nPr, and nCr.

http://support.casio.com/manualfile.php?rgn=1&cid=004002007

Here are the capabilities of the Casio calculators.The screen captures may not look like ones taken from the FX-7400G plus display but the instructions are accurate.In stat enter the values in List1 and the frequencies in List2 (if doing paired variable statistics)Press the key corresponding to the CALC tabPress the 1-var tab and you get the results as seen on the screen with title 1-variable.Other screens show some two-variable stats or regressions. Use you knowledge of sample standard deviations and population standard deviation to select which is relevant to your case. They are given by xsigma-n and xSigma n-1

You can not do that like you think you could. You have to enter your y= equation in to the graph and then look at the graph line to see what X equals at a certain Y. Or you can rearrange the equation. For example: y=4x+5, rearrange it to be (y-5)/4 then plug your Y-value in and it will give you the X-value.

http://support.casio.com/manualfile.php?rgn=1&cid=004002008

To find the factorial command, go to the Run screen and press [OPTN] [F4] (PROB) [F1] (x!). For example, to find 5!, press 5 [OPTN] [F4] [F1] [EXE].
Source: http://bit.ly/fbaTZt

You seem to be doing it correctly. The natural logarithm of 2/3 is about -0.405 and the natural log of 1/30 is about -3.401.

As for the common log of 10y, that would depend on the value of y. If y is e/10, then the log of 10y would be about 0.4343.

there should be an e to the x power button and to graph would be in y= button y=(e^-2x)+3x (^ stands for exponent spot) after putting this in to the y= hit graph

Hi
its possible that the fuse on the main circuit is burn

You can download the manual by chapter from the manufacturer's web site at
http://support.casio.com/manualfile.php?rgn=1&cid=004002007

You can use the value of e you know and square it, or you can use the exponential function as follows
[SHIFT][e^x] 2 [=]

Your solution is
x=(e^2 -1)/2= 3.19452804946 =3.19