Question about Casio FX-115ES Scientific Calculator

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Base changes (e.g. dec to hex...)

This is certainly a nice calculator (hadn't bought one for probably
10 years!), but it's more complicated to use than I'd like it to be.

Anyway, I'm a firmware engineer, and I often am wanting to enter a
number, and hit ONE key to instantly change that number from dec
to hex, bin, octal...

The only way I've found seems to be to enter the number, multiply
it by 1, hit = , then I can hit (bin, hex, oct) to convert it. Isn't there
a way to enter a number, and not have to multiply it by 1 to get a
result that I can convert to a different base?

Yeah, not really a big problem, but I guess I'm thinking there ought
to be a way, since MS Windows and Linux calculators let you do
this with one click...

Thanks

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  • Casio Master
  • 7,993 Answers

Hello,

You do not need to multiply by 1. If your calculator does not convert the number you just entered, try validating your entry by pressing = then convert it to hexadecimal.

Hope it helps
base changes (e.g. dec to hex...) - moz-screenshot.pngmoz-screenshot-1.png

Posted on Aug 20, 2009

  • k24674 Sep 17, 2009

    To do base-n calculations set [MODE][4:BASE-N] the fist defaukt base is base 10
    To convert a base-10 number into base-16 you proceed as follows
    1234567 [=] [HEX] gives 0012D687. To convert this result to base-8 press [OCT] result is 000045532207. Once u number is enrered in any base it can be converted to others bases at the touch of a button.


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1 Answer

How do you change a number to binary?


Press MODE 4 to select the BASE-N mode. Press one of DEC, HEX, BIN, or OCT to specify the input base, enter the number, then press one of the base keys to convert to that base.

Aug 29, 2013 | Casio FX-115ES Scientific Calculator

1 Answer

How can I reset my Casio FX-115 ES calculator to its default settings


There must be an error in what you report. You pressed MODE then 4: Base-N and now your calculator is in base-N calculation mode (the DEC, Hex, BIN, OCT) numeration keys are active.
To do statistics you must put the calculator in STATS mode.
Press MODE: You have 6 computational modes to choose from
1: COMP, the general computational mode
2:CMPLX, for calculation s with complex numbers,
3: STAT for statistics,
4: Base-N, binary, octal, decimal, and hexadecimal numeration
5: Equation, solving mode, etc..
For statistics, choose 3:STAT

Apr 24, 2012 | Casio FX-115ES Scientific Calculator

1 Answer

My calculator is stuck on Bin...I can also put it on Hex, Dec, and Oct. But not just regular


You're in the BASE-N mode, which allows you to do integer arithmetic and logic in a variety of bases. To get out, press MODE and then select the desired mode. 1 is for "normal" computations, 2 is for complex arithmetic, 3 is for statistics, 4 is the BASE-N mode, 5 is for equations, 6 is for matrices, 7 is for tables, and 8 is for vectors.

Sep 13, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

Base number conversions


Press MODE 4 to enter the BASE-N mode. Press the BIN, OCT, DEC, or HEX button to specify the input number base, enter the number to be converted, then press the BIN, OCT, DEC, or HEX button to convert to that base. To enter the other hexadecimal digits, use the A, B, C, D, E, F buttons (the row of the keyboard beginning with the (-) key.

Mar 24, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

How to fix dec.


There's nothing to fix. This merely indicates that the calculator is set to DECimal (base 10) for integer operations. You can change it to BINary (base 2), OCTal (base 8), or HEXadecimal (base 16), but one of those indicators will remain on the screen. The calculator has to be set to one of these bases. The same applies to the angular mode and other annunciators on the display.

Nov 20, 2010 | HP 48gx Calculator

1 Answer

Cant get it into degree mode for oct mode


If you want to use degrees (to have a DEG appear on top of the screen) you must exit all base-N modes (bin, oct, hex, or pent if available) and set the calculator numeration mode to DEC, decimal (the usual computational moode). The other modes are appropriate for handling certain types of calculations with integer (whole) numbers.

Jan 29, 2010 | Office Equipment & Supplies

1 Answer

I forgot unlock code


This worked for me Thank Oxzgen from omgili.com
http://www.omgili.com/jmp/jHIAmI4hxg9kf_ixKeaBu9msccDGZfaj8Tp2CgQqtGDEJQ_7vJwV1ksniy7rGbKYY4PhKAtptB4XFO38fDtJZUxJoawCb1qPMpLJOL7AwKj0PSS6g60v9RGBmObIo2QKSHx5nJsiNCs-
--------------------------
OK... This is a little confusing and I didn't think it up (I wrote the part about HashCalc to adapt this method to the Juke). Here it goes:

Theres a number on the back of the phone: its 14 characters long... This is a MEID Hex code. It's not in the format you need to unlock your phone; you want ESN Hex which is 8 characters long. You need HashCalc (Free Program! Google it!) to convert it to ESN.
Pre.1) Open HashCalc
1) Set the [Data Format] (Drop-down box option at the top)
2) So you enter the 14 character code in the [Data] box.
3) Then make sure the box is checked next to the [SHA-1].
4) Then click [Calculate] at the bottom of the program.
5) Take the last 6 digits of the SHA-1 code.
6) Add 80 to the front of the code.
ie. Say the code was: 9a00297d20c0ef27c7afad981abbbad417045a64
Take the last 6 characters = 045a64
Add 80 to the front = 80045a64
This is the ESN Hex code I was talking about.

Now to convert the ESN Hex to your unlock code. I didn't make this part up...
7) Open your Windows Calculator (Sorry Mac Users!).
It's in Start Menu > All Programs > Accessories > Calculator
8) Set the calculator to Scientific Mode (in the view menu).
9) Then click the circle next to Hex to change to Hex mode.
10) Make sure your Hex mode is Qword (to the right of the Hex option)
11) Enter the 80****** code you created.
12) Change from Hex to Dec without clicking [=] or any other key.
13) The Lock Code is the last 4 digits of the Dec number.

Thats it! Theres your code. It worked with my Juke!

Apr 05, 2009 | Samsung SCH-U470 Juke Cellular Phone

2 Answers

I changed my samsung Juke from Nam1 to Nam2 and now it says initial programming needed and I am unable to unlock the phone. What can I do? My unlock code is not working.


OK... This is a little confusing and I didn't think it up (I wrote the part about HashCalc to adapt this method to the Juke). Here it goes:

Theres a number on the back of the phone: its 14 characters long... This is a MEID Hex code. It's not in the format you need to unlock your phone; you want ESN Hex which is 8 characters long. You need HashCalc (Free Program! Google it!) to convert it to ESN.
Pre.1) Open HashCalc
1) Set the [Data Format] (Drop-down box option at the top)
2) So you enter the 14 character code in the [Data] box.
3) Then make sure the box is checked next to the [SHA-1].
4) Then click [Calculate] at the bottom of the program.
5) Take the last 6 digits of the SHA-1 code.
6) Add 80 to the front of the code.
ie. Say the code was: 9a00297d20c0ef27c7afad981abbbad417045a64
Take the last 6 characters = 045a64
Add 80 to the front = 80045a64
This is the ESN Hex code I was talking about.

Now to convert the ESN Hex to your unlock code. I didn't make this part up...
7) Open your Windows Calculator (Sorry Mac Users!).
It's in Start Menu > All Programs > Accessories > Calculator
8) Set the calculator to Scientific Mode (in the view menu).
9) Then click the circle next to Hex to change to Hex mode.
10) Make sure your Hex mode is Qword (to the right of the Hex option)
11) Enter the 80****** code you created.
12) Change from Hex to Dec without clicking [=] or any other key.
13) The Lock Code is the last 4 digits of the Dec number.

Thats it! Theres your code. It worked with my Juke!

Jan 13, 2009 | Samsung SCH-U470 Juke Cellular Phone

1 Answer

Cassio fx100s how to convert dec to binary and hex to binary


this s very simple....jus press MODE button twice u will find BASE in that...then press 3...then u can convert all those operations wch u want to proceed...jus try and reply me if u hav any doubt in it!!!!

Sep 11, 2008 | Casio FX-115W Plus Calculator

3 Answers

Dec to hex conversion


Not sure if TI-89 mode keys are the same, but here's the solution for that calculator:
1. Hit the mode key
2. Hit F3 to get tot Exact/Approx (might be different for 89T).
3. Set it to Exact.
4. Take a look at T-89 manual pages 327, 328, 329.
Nice of TI to NOT include that in the manual, huh?

Dec 13, 2007 | Texas Instruments TI-89 Calculator

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