Post your ideas for new math programs here, or build on ideas posted by other visitors.

I would like someone to make a math program for numerical analysis for advanced math classes. I do know this would be an easy program to make, although, I need to know how to start it and if someone could show me how to start it, I could make one and then put it on the site. I have a TI-83 or TI-92 Plus. So if you have any ideas, contact me asap.

Hey. So what kind of Advanced Math Classes are we talking here? I could help but I would need equations on what you are talking about then, I could send you the information you want and need to get started then you could do the rest.

Can I get some help on a midpoint and a distance formula

What calc?

He said he has a 83+ or 92

like what? just use prompt, variables, and the correct equations too. right?

If You are looking for distance formula, and have a ti-89 then you could download mathwiz.
It has a program in it which figures out the distance, midpoint, slope, and the y-intercept formula for the line. All you do is type in two coordinates and everything else is done. Anything else?

simple

DISTANCE
prompt A,B,C,D
disp (sqrt((A-C)^2-(B-D)^2))

MIDPOINT
prompt A,B,C,D
disp (A-C)/2-(B-D)/2

another option, with both formulas in one BASIC program for the ti-83+

Prompt L1,L2
Menu( "welcome", "midpoint",MP, "distance", DI, "exit",X)
Lbl MP
DelVar L3
(L1(1)+L2(1))/2 -> L3(1)
(L1(2)+L2(1))/2 -> L3(2)
Disp L3
Stop
Lbl DI
sqrt( (L1(1)-L2(1))^2 + (L1(2)-L2(2))^2) ->D
ClrHome
Output( 1,1,D)
Output( 2,1,"sqrt(")
Output( 2,3,D^2)
Stop
Lbl X
Stop

It may be a bit long, but it gets the job done well.
Note: the spaces are not part of the program

I tried using the program you suggested and all i recieved were errors. It is most likely my fault but there are symbols that are close to the ones you typed that confused me if it isn't too much trouble would you please specify how to type each character. It will most likely will be a pain but would be greatly appreciated
Thank you for your time

the symbols are:
sqrt= the square root button.
L1-L2= list one and list two
^2= is the the number squared.
->= is the sto-> button
if you need it, i could write it for you.
ill email it to you if you need it.

Here it the program I wrote for slope, midpoint, and distance. not that yours wont work, i just think that mine is a little easier to understand for beginners. it is as follows:
:disp "(x,y),(a,b)"
:prompt X,Y,A,B
:B-Y->C
:A-X->D
:if D=0
:then
:disp "NO SLOPE"
:Else
:Disp "SLOPE"
:Disp C/D ->frac
:End
:sqrt(C^2+D^2)->E
:Disp "DISTANCE",E ->frac
:((X+A)/2)->F
:((B+Y)/2)->G
:Disp "MIDPOINT (X,Y)",F,G

Thats all there is to it

P.S-
->frac displays the anwser as a fraction, it is found under Math:1
also, just so you under stand the program asks for two points, that is the (X,Y),(A,B)
if you type in the point and it displays "NO SLOPE", this is if the line is verticle and the slope involves dividing by zero.

:Input "X=1",A
:Input "Y=1",B
:Input "X=2",C
:Input "Y=2",D
:C-A->X
:D-B->Y
:sqrt(X^2+Y^2)->
:ClrHome
:Disp "DISTANCE IS"
:Disp R
:Disp "MIDPOINT IS"
:(C+A)/2->X
:(B+D)/2->Y
:Disp {X,Y}
:Disp "SLOPE IS"
:if (C-A)=0
:Goto 1
:(D-B)/(C-A)->
:Disp S->Frac
:Stop
:Lbl 1
:Disp "THE SLOPE IS","UNDEFINED"

Wait a minute. What's R? You never assigned R a value. And sqrt(X^2+Y^2)->? You can't just store a value. You have to store it into something. Also the "stop" is not needed at all-you hadn't yet used Lbl. Anyway, you don't need to use the Goto function in the first place, and should avoid using it--it's just sloppy coding and can lead to lots of syntax errors in longer programs.

I think the stop is needed here, otherwise the message would appear even if it isn't supposed to come.

That's correct. Without the stop, it would tell you the slope then inform you that the slope really doesn't exist... also, the goto part is fine... it could be replaced with if then else, but that would be more memory consuming. True, long programs may be confusing with thousands of gotos, but they are generally less efficient if other methods are used.

Dude, all you need to get MP and DI is the same 4 prompts.
So:
::"DIST
:ClrHome
:Prompt X,Y,Z,T
:(Write your own formulas, I have a science fair project I should be working on... Find both DI and MP with them.)
:round(D,5)->D
:round(M,5)->M
:Disp D,M
:Pausde
:End

Gets the job done nicely, not pretty, but efficient. You can even cut out the round func and make a cool
:Output(5,1,"Distance:")
:Output(5,11,D)
:--- Same thing on the next line for Midpoint

You could do slope with it too.

How do you get = sign on calc for...
:if D=0
send to bboy623@gmail.com

you press 2nd MATH and enter

i was looking at this and i noticed that the formula was wrong and that it should be the sqrt (a minus c)^2 + (b minus d)^2

I like this one, but most teachers want an exact answer, so I leave out the �� out and then write it in radical form.

:I'm not saying anyones ideas here are not the best way to go about this program,but i made one without having to input A,B,C,or D more than once. After typing in the X and Y values it will display The distance, and when you press enter it displays the Mid-point, and finally with another press of the enter button it will display the slope as well. (MADE ON TI 84+)

Lbl A
Prompt A,B,C,D
Sqrt((B-A)^2+(D-C)^2)->A
((A+B)/2)->B
((C+D)/2)->C
(D-C)/(B-A)->D
ClrHome
Disp "DISTANCE"
Disp A
Pause
ClrHome
Disp "MID POINT"
Disp B,C
Pause
ClrHome
Disp "SLOPE"
Disp D
Goto 1 (NOTE:The goto 1 is referring to another part of the larger program itself and if you made this by itself i would have it go to Lbl A.)

Now this is what I'm talking about!!! Perfect! Under 450b / RAM I bet and works for sure. A bit excessive on the paranthesis, but it's a good way to find bugs in programs quickly.

Why not display the results all at once?

mm

hey i made some programs which u might need give me a reply and i could load em um to the site

I'm hoping its what I'm looking for

I made a couple programs on the 83+SE. The series of programs are called "mathcheat.zip" in the archive. Hit it up, it's really useful for basic/"advanced" math classes, Geometry, Algebra, and Algebra II. Sooner or later, I'll make one for Calculus as that's what I'll be taking in school next.

HEY can you email them to me?MY email is jackpiser@hotmail.com

send me copies of the programs you made plz. I would really appreciat them kind sir. thank you for your generosity :-)

can you send them to me in a attached email file plz kind sure. i would really appreciate them. :-) also can you email me the text source code for the programs to im currently taking computer sci 1 and i could use that to even more help to figure out this basic programming stuff! :-) my email address is fisher724@hotmail.com

Can you email me the program at
bboy623@gmail.com

I have a program on my calculator that works for midpoint distance and quadratic formula with imaginary numbers.i can send it to just gimme ur email address

HEy can yoyu seed them to me ? thanks email jackpiser@hotmail.com

can you send me them and the quadratic formula please , need quadratic by tuesday night

can you send them to me in a attached email file plz kind sure. i would really appreciate them. :-) also can you email me the text source code for the programs to im currently taking computer sci 1 and i could use that to even more help to figure out this basic programming stuff! :-) my email address is fisher724@hotmail.com

can't you just write a program like that?

exactly!

I really need a midpoint, distance and any new basic programing for a TI-83 plus. I am new at learning how to program my TI. please e-mail me with programs
lewis121@cox.net

can I get the quadratic formula please?
chica.loco@gmail.com
thanks!

i have a program called XYhelper. i will post it.

I have made a functional quadratic formula program that finds real and imaginary roots (although it requires a small amount of thinking). The script goes as fallows:

REMINDER: Use the negative (-) sign when needed. Don't always use subtraction sign. Also all i's represent the value i not the letter. The value i is the 2nd function of the (.) key. In the script SQROOT means the square root function which is the 2nd function of the x^2 key.

:Disp "A"
:Input A
:Disp "B"
:Input B
:Disp "C"
:Input C
:(B^2+(-4*A*C))->F
:If F<0
:Then
:Disp "A + OR - SQROOT(B)i"
:Disp "OVER C"
:Disp -B,abs(f),(2*A)
:Else
:Disp "A + OR - SQROOT(B)"
:Disp "OVER C"
:Disp -B,F,(2*A)
:Disp "SIMPLIFY?"
:Disp "YES=1 NO=2"
:Prompt P
:If P=1
:Then
:(-B+SQROOT(F))/(2*A)->D
:(-B-SQROOT(F))/(2*A)->E
:Disp D,E
:Else
:End

Questions, comments, or problems email bmcdon07@yahoo.com

will you E-mail me all the formulas that you know, and just a quadratic formula not including imaginary numbers plaese.my email is kerfoot36@aol.com

Thank you

Is this program for an TI-83, because when I tried to do the A+ or -SQROOT(B) it said Error:Syntax?

I need to know how to put in an equals sign and a greater than sign if anyone can help

2nd-Math-1
Equals sign

2nd-Math-3
Greater than sign

thanks

in the 12th line it says abs(f) does that mean the letter f or is their something special to it?