Question about Casio FX991MS Scientific Calculator

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11^27 = 13,109,994,191,499,930,367,061,460,371 which is 29 digits long.

You can get this result from the Windows calculator (scientific view) by entering 11 and then pressing x^y 27 = . Then use Mod 29 = to get the result, which is 8.

Unfortunately the Casio fx-991ms (as with most other calculators) doesn't have nearly enough digits to cope with this type of calculation. You therefore need to split the calculation down into more manageable chunks, as follows, which works on most calculators:

First calculate 11^3 = 1,331 and work out Mod 29, which is 1,331 - 45×29 = 26.

Then calculate 26^3 = 17,576 and work out Mod 29, which is 17,576 - 606×29 = 2.

Finally calculate 2^3 = 8. Since this is less than 29, it is also the final answer as confirmed above.

This method can be used with any power number that can be factorised into numbers that don't cause the available digits of the display to overflow. In this case 27 = 3×3×3 so each step involves cubing the previous answer.

Posted on Jul 05, 2011

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Sep 20, 2013 - Press [SHIFT][Menu] to open (Setup). Scroll Up to reach the line Display, press [F2] (Sci), type in the number of decimal digits, press EXE. See the screen captures below.

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Jun 18, 2018 | Casio Computers & Internet

You could always remove the battery and start over. The procedure for removing the battery is on page 29 in the attached manual.

Good luck,

Paul http://support.casio.com/storage/en/manual/pdf/EN/004/fx-300ES_PLUS_EN.pdf

Good luck,

Paul http://support.casio.com/storage/en/manual/pdf/EN/004/fx-300ES_PLUS_EN.pdf

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In this video you can simply understand how to find a value of a given missing number in a table on Casio fx ...Missing: 4800p

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Jan 05, 2016 | Casio Office Equipment & Supplies

Casiodisplay format (Disp) settings while the calculator is in the BASE ... Be sure to checkthe current calculation mode (SD, REG,. COMP ... Use [ and ] to display the expression 4 + 4. Press A ... want to perform scientific function calculations. COMP .

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Standard Casio calculator programs have codes that you can find on Planete casio, a site in French.

Here is the link

http://www.planet-casio.com/Fr/forums/topic1048-1-Mots-de-passe-pour-graph-60-ou-65-%28plus%29.html

As to recovering the password to a program you created, you will have to try hard to remember. Or opening the file with some file editor.

Here is the link

http://www.planet-casio.com/Fr/forums/topic1048-1-Mots-de-passe-pour-graph-60-ou-65-%28plus%29.html

As to recovering the password to a program you created, you will have to try hard to remember. Or opening the file with some file editor.

Nov 02, 2013 | Casio Algebra FX 2.0 Calculator

Standard Casio calculator programs have codes that you can find on Planete casio, a site in French.

Here is the link

http://www.planet-casio.com/Fr/forums/topic1048-1-Mots-de-passe-pour-graph-60-ou-65-%28plus%29.html

As to recovering the password to a program you created, you will have to try hard to remember. Or opening the file with some file editor.

Here is the link

http://www.planet-casio.com/Fr/forums/topic1048-1-Mots-de-passe-pour-graph-60-ou-65-%28plus%29.html

As to recovering the password to a program you created, you will have to try hard to remember. Or opening the file with some file editor.

Nov 02, 2013 | Casio Algebra FX 2.0 Calculator

Casio has a scientific calculator with Model FX-991 ES. It is sold in North America, and maybe in other continents. You can find it at Staples/ Bureau en Gros stores for around 29 CAD.

Sep 06, 2011 | Casio FX-115ES Scientific Calculator

Using the Windows calculator in scientific view, we get:

17^23 = 19,967,568,900,859,523,802,559,065,713

which is 29 digits long, ie much longer than the capacity of most calculators.

Because both 17 and 23 are prime numbers, it isn't possible to simplify this calculation, so you will need to use find a calculator that has sufficient capacity to be able to handle numbers of this length.

The*xnumbers* add-in for Microsoft Excel can also be useful for this sort of calculation (do an internet search for it).

Using the Windows calculator, MOD55 of the above number is 18.

17^23 = 19,967,568,900,859,523,802,559,065,713

which is 29 digits long, ie much longer than the capacity of most calculators.

Because both 17 and 23 are prime numbers, it isn't possible to simplify this calculation, so you will need to use find a calculator that has sufficient capacity to be able to handle numbers of this length.

The

Using the Windows calculator, MOD55 of the above number is 18.

Jun 30, 2010 | Casio FX-115MS Plus Calculator

What do you really want to do? 360/29 gives 12.4137931 degrees. Is it not 360 divided by 30? That looks more common, and the result is 12 degrees. That is what you get if you want to inscribe a regular 30-gon in a circle.

Feb 21, 2010 | Casio FX-115ES Scientific Calculator

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