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Is it possible to find spearman Rankorder Correlation coefficient on TI 83?
Not builtin, but a program could be written for that… the algorithm isn't too complicated.
thornahawk
http://www.ticalc.org/pub/83/basic/math/statistics/
scroll down to "
srcorr.zip 1k 991111 File is not rated Spearman Rank Correlation Coefficient

hope this helps
falcon
hi,
Can u plz tell me how to use this program srcorr for spearman's correlation coefficient. i have installed it in my TI84 but i dnt know how to use it.
please reply
The program that navyfalcon posted two years ago needs an additional subroutine (which you can download here) to work correctly. Or is there something about the coefficient that you don't understand…?
when i go to program srcorr it asks me GROUP X= , so what i shud enter and how?
I was "installing" a gravity simulation onto my TI83 plus, and I came across a command that I am unfamilar with and unable to find neither on my calculator nor on the command index here.
The command in question is "sqr".
Where it is on the TI83 plus?
Holmes. McCoy. I answer to both. I don't really know why.
sqr, or sqrt, are common short names for square root! Therefore the TI83 equivalent is the √(.
OOH! Now you've explained it to me, it's perfectly obvious!
Holmes. McCoy. I answer to both. I don't really know why.
i checked the multiplayer codes, but its not for having
multiplayer poker games where you have 2 or 3 ai players and one human player
can someone plz help
"Multiplayer" usually refers to games with more than one human player, so the multiplayer page wouldn't be useful to you. What specifically are you interested in?
My TI89's catalog is incoorect. Instead of having a catalog with user defined functions and variables along with the prestored commands, I have a catalog that resembles that of a TI83, and contains only the calculater functions. Anyone know how to get the correct catalog back?
You have to press F4: User Defined to go to the user defined programs and functions. F3 is flash apps.
Sunrise 3 Progress: 30%
Size: around 20 KB, not including the save lists and ingame RAM.
there is a symbol i am trying to program, tha a with a dash over it, but i cant find it anywhere on my calculator. can anybody help me?
Do this hit Vars button 5 button and then scan through the menus there some cool symbols there. If you cant find it there use this program.
I need help with symbols too. i need the a with a dash, but i also need the little triangle before things like (^=triangle) ^X and ^Y and ^Tbl, but i need it separate, by itself.
You are talking about delta, right? $\definecolor{darkgreen}{rgb}{0.90,0.91,0.859}\pagecolor{darkgreen} \Delta$ I went ahead and downloaded the program noahbaby94 introduced, and it includes that and a variety of other symbols. I would recommend downloading that program.
~Timothy
Timothy Foster  @tfAuroratide
Auroratide.com  Go here if you're nerdy like me
Ahh i finally see what you mean you get ΔX and ΔY from the vars menu go down to 8 and 9 and you'll see both of those. For the ΔTbl go from the vars menu to Table and hit enter It will be the second one.
P.S. I suggest you play around in the vars menu.
Does anybody know how to make a program so that the TI84 (or preferably just any TI calc) can print out a number that's longer than 14 digits long? When i try to subtract two numbers bigger than that (eg 1234567890123456  1234567890123400) I end up losing any digits after the 14th (that problem returns 0, when it should be 56).
The calculator only remembers the first 14 digits of any number, and it displays the first ten digits. So really, I do not think there is a way for the calculator to do this. There might be a program that can do it.
EDIT: Here is a program that says it can do it. I haven't tried it, though.
Timothy Foster — My Site ~ iNews ~ TIBD
Timothy Foster  @tfAuroratide
Auroratide.com  Go here if you're nerdy like me
It doesn't?
Same link, different format: http://www.ticalc.org/archives/files/fileinfo/209/20936.html
If it still fails, copy and paste.
Timothy Foster — My Site ~ iNews ~ TIBD
Timothy Foster  @tfAuroratide
Auroratide.com  Go here if you're nerdy like me
this is just a guess but…
when i read about assembly, i learned that the largest registry in the calculator is 2 bytes, which is 16 bits. the largest number represented by 16 bits is a 14 digit number so the calculator can't handle math larger than that (i'm guessing?)
if somebody were to write an assembly program that used memory addresses to do the math…
?????
Cabamap Manual.pdf 22167
cabamap.8xk 24900
Timings.txt 813
cabamap_source.zip 52540
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KC2ZOF
I was looking for double precision arithmetic for the TI calculator
I don't know if this is it or not. But double precision arithmetic will
increase the amount of digits displayed.
http://www.ticalc.org/pub/89/basic/math/geometry/
pinewt.zip 3k 060707 File is not rated
PINEWT  Computes pi to housands of places
Using "infinite" precision arithmetic you can compute (slowly) PI to
thousands of places by evaluating Newton's power series
http://www.ticalc.org/pub/83plus/basic/math/arithmetic/
bigint.zip 1k 011216 File is not rated
BigInt
This program can multiply numbers of infinite length and gives an exact
answer.
bigmult.zip 1k 071215 File is not rated
BigNumber Multiplication
BigNumber Multiplication allows you to multiply far bigger numbers
than the TI calculator supports. It's very easy to use and displays
the answer in a convenient way. This program is faster, takes up less
memory, and is easier to use than all other BASIC programs like it.
It can multiply two numbers that both take up the entire screen in
less than a minute. The program is unprotected and is so simple to use
that I didn't bother to include a ReadMe.
matmzipper.zip 1k 030602 File is not rated
Exact Values For Extremely Large Integer Multiplication (PU
This program allows for extremely high integer multiplication. The
largest integer you can display exactally on the TI83+ is 9999999999
of 10^101. The largest value you can reach period, before getting an
overflow error is 10^99. This program calculated the exact value of
(10^2771)^2. Using that same formula, the overflow point for the
TI92+ is (10^3081)^2. This program greatly expands the
multiplicative capabilities for the calculator. However, there are a
few limitations. You can only multiply integers, and you have to type
them out exactally. Yes, I entered 277 9's by hand. Twice. The program
is pretty small, 728 bytes. Pretty fast too, it squared a google in
less than 5 minutes. When you run the program, it will ask for the two
numbers, then it will begin displaying the percent multiplied as it
works. Once it completely multiplies the number, it takes another
moment or 2 to convert it to a displayable format. Then it displays
it. If it flows off the edge, just scroll. I have big plans for this
program, and using the (Un)Archive functions, I hope to expand the
capacity even more. See how far you can take it, my calculator is
pretty bad. Push the envelope.
http://62.65.69.4/pub/89/basic/math/arithmetic/
fact.zip 1k 030512 File is not rated
FACT 1.1 Large number factorials
This example program shows how to break the limitation where
calculators have trouble producing factorials for large numbers. Most
scientific calculators cannot handle more than 69!=1.711E98 because
their displays can only handle two digit exponents. The TI89 can
handle up to 449! by default, because the display shows three digit
exponents. This example program can handle up to 94851898540!
mathlong10.zip 3k 030724 File is not rated
Arbitrary Precision Math
This program adds, subtracts, multiplies, and divides numbers of ANY
length with no loss of precision. No practical use yet, but it's fun.
People interested in extending precision might wish to take a look at this paper. It shouldn't be too hard to adapt the ALGOL to TIBASIC. :)
thornahawk
Is it possible to write a line in a TI84+ program to change the value of a y_{n} expression? Specifically, I want a quick way to fill y_{3} with nDeriv(y_{1},x,x). (I'm making a program to automate the process of checking whether a derivative I've found for Calculus class is correct). My code as it stands now is:
ClrDraw
FnOff
DrawF nDeriv(Y1,x,x)
GraphStyle(2,2)
FnOn 2
The idea is that you'd input a function as y_{1}, input what you think its derivative is as y_{2}, run this program, watch the calculated derivative be drawn, and then watch the guessed derivative be drawn in bold; if they overlap, you were right.
Since I couldn't figure out a way to get my program to force the expression "nDeriv(Y_{1},x,x)" into y_{3}, I used DrawF, but the calculator clears the drawn function before drawing y_{2}.
…Help!
You can store nDeriv(Y_{1},X,X) into Y_{3} directly through the Y= editor. If you want to store it withing a program, you can do this:
"nDeriv(Y_{1},X,X→Y_{3}
You can store a string into a function variable (therefore, the quote is needed).
Timothy Foster — My Site ~ My Blog
Timothy Foster  @tfAuroratide
Auroratide.com  Go here if you're nerdy like me
I am working with a TI89 and am trying to control an external device with the serial port. I have a 2.5mm stereo cable which is properly connected to the calculator and pullup resistors on the data lines. The output should be visible on my oscilloscope but I don't see anything. The calculator then spits out an error "Link transmission". Is it waiting for some form of return?
0h55 > t
while (true)
send {t}
EndWhile
For testing I want to continuously send 55 hex as fast as possible. So can I ignore the error in basic or do I need to do this in assembly and will I be able to turn the calculator off short of removing the battery if this works? Eventually I will be controlling a RC car like robot and maybe make it follow a user input path (sin, cos, parabola, etc.).
I don't know about the 89, but on the 84, it the usb, and I would assume the I/O port, uses Bulk transmissions in forms of packets. So I don't really know.
But both the 84 and 89 still have the serial cable port so shouldn't I be able to use it? Either way how do I get around the error?
I looked at the error page for 68k calcs, and We don't have much information on it. Just the name, and error number. I don't know of a way around it, except through asm.
my daughter is using the 83 Plus to do some graphing problems. However when she pushes graph it says ERR: archived. How do I get this off.
maybe the Plots are on, but the lists are in the archive?
to get to the archive, press:
[2nd]
[+]
[2]

once there, to get to the lists, press
[4]
if there is a star next to the list, press enter when the arrow is next to the list name.
with the star, it means its archived
another way to do this is:
[2nd]
[+]
[6]
[2nd]
[STAT]

find the list name
press enter
press enter again
hopefully this works
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KC2ZOF
The easiest way to remidy this is to reset all default settings.
Press [2nd] [+] [7] [2] [2] to do this. This will not erase data in RAM or ROM. If there is "giberish" (Somthing your daughter accedintally typed in) in the y= menu, manually clear these.
Find more info about my projects on Omnimaga:
http://www.omnimaga.org/index.php
hey, I have a ti 84 SE and have a pretty dumb question, but nonetheless a question. I used the Horiz command(splits the screen in two between the home and graph screen) and now I dont know how to get in back to normal. Thanks if you reply
Go to MODE and change the setting to Full.
P. S. You should sign up for TIBD.
Sunrise 3 Progress: 30%
Size: around 20 KB, not including the save lists and ingame RAM.
sorry, just realized I did a typo. ON the second line I meant to say "and now I dont know how to get it back to normal"