How to Upload Programs to Ti 84

10 Helpful Act Math Figurer Programs for the TI Graphing Series of Calculators

Below are some TI-83/84/85 programs that you tin can enter into your calculator for the Act Math Department.  Like many of you, I utilize a TI-83 Plus graphing calculator, and then my instructions are customized for that calculator, but they should work fine for the TI-84/85 series as well. Remember that the TI-89 is not allowed on the ACT, considering of its CAS (computer algebra system) functionality!  It'due south perfectly OK to use programs on your TI-83/84/85, withal, because these calculators lack CAS capability*.  Act Computer Policy*(EDIT 4/half dozen/17):  There is a little-known rule buried in the FAQ and Help section of the Deed website that the programme "must not accept more than 25 lines of logical text" and "must not call on any other programs."  Due to the fact that few examination-takers and proctors are enlightened of this rule, it is unclear whether this restriction will be strictly enforced.  Here is the verbal text:

"Q10: Are in that location any rules that allowed mathematics-related programs must follow? A: Programs must be written in the language of the calculator. Programs written in a different language, compiled, and loaded onto the calculator are not allowed. In this fashion, the programs can exist examined on the reckoner and will use calculator functions. Programs must not be lengthy. The limit is 25 logical lines of code. Programs cannot call another programme. Techniques such as compressing lawmaking into a data argument are not allowed as a way of getting around this limit. Programs are immune to change the value of organisation variables then that results may, for instance, exist graphed through the normal calculator graphing interface."

Unfortunately, although there is the selection of using a TI Connect cable (for the TI-83 serial) / micro USB cable (for the TI-84 serial and to a higher place) and downloading the TI Connect software, this software is buggy / difficult to use for some, and doesn't work on many operating systems.  If you lot can get the software to work, then you can download boosted formulas for this software here.  If yous want to endeavor information technology out, then check out this instructional video by Brooke Hanson from SuperTutor Goggle box, who explains every step of the procedure.  Feel complimentary to give this software a try if you like, but hither, I volition be didactics you lot how to enter some of these programs the old-fashioned way: past manus.

If you have a friend who has programmed these formulas into his/her calculator already, then you can also use a Link Cablevision (TI-83) or Mini USB to Mini USB Cable (TI-84 and above) to transfer the programs directly from your friend's calculator to yours.

In my opinion, the cardinal is quality over quantity.  It'due south like shooting fish in a barrel to only download every program you lot tin find, but information technology helps to notice a few useful programs and stick with those.

Any suggestions for additional programs, delight let me know at mcelroy@postal service.harvard.edu.  If possible, please include the source code of the program(s)!

HOW TO ENTER THE FORMULAS INTO YOUR CALCULATOR

Imagine your Texas Instruments figurer buttons every bit a serial of rows (beyond) and columns (upwards and down).  This will help me point you toward the right buttons.

The program "PRGM" button is row 3, column 2: printing that button start.  So, select "Create New" and give your program a name using the dark-green "Alpha" Key—row 2, cavalcade 1 and the green letters written above the keys.

The —> central is the "STO->" Key (row 8, column 1) straight in a higher place the "ON" key.
The =, <= and >= keys can be plant under the "Exam" Menu attainable through the "second" key (row 1, column 1).
"Prompt" tin can be found within the "PRGM" menu (PRGM / I/O)
"Disp" tin can likewise be institute within the "PRGM" menu (PRGM / I/O)
"Sqrt" refers to the square root push (second central / row v, column ane)

i) Quadratic Formula SolverPrompt A
Prompt B
Prompt C
(-B+sqrt(B^2-4AC))/(2A)-->10
(-B-sqrt(B^2-4AC))/(2A)-->Y
Disp 10
Disp Y

Pro tip: to include imaginary (nonreal) results, select "Style" and alter "Real" to "a+bi".

2) Distance Formula

Prompt A                (x_one)
Prompt B                (y₁)
Prompt C                (10₂)
Prompt D                (y_ii)
Sqrt((A-C)^2+(B-D)^two)--> E
Disp "Distance ="
Disp E
Cease

3) Expanse of Triangle Using 3 Sides

Disp "Side A"
Input A
Disp "Side B"
Input B
Disp "Side C"
Input C
A+B+C-->X
10/two-->D
Sqrt((D)(D-A)(D-B)(D-C))--> E
Disp "Area=?
Disp Due east
Finish

4) Midpoint Formula

Prompt A              (ten₁)
Prompt B              (y₁)
Prompt C              (x₂)
Prompt D              (y_ii)
(A+C)/2--> Eastward
(B+D)/2--> F
Disp "X Midpoint="
Disp E
Disp "Y Midpoint="
Disp F
Terminate

5) Sum of X Consecutive Integers

Disp "Sum of"
Input S
.5S(Southward+one)-->A
Disp "Sum of 1 to S="
Disp A
Terminate

vi) Volume and Surface Area of a Sphere

Disp "Radius="
Input R
(4/3)PiR^3-->Z
4PiR^iv--> Y
Disp "Volume="
Disp Z
Disp "Surface Expanse="
Disp Y
Cease

7) Volume and Surface Surface area of a Cone

Disp "Radius="
Input R
Disp "Tiptop="
Input H
Disp "Slant="
Input S
(one/3)PiR^2H-->V
PiR^ii+PiRS--> W
Disp "Volume="
Disp V
Disp "Surface Surface area="
Disp W
Terminate

8) Converting Betwixt Fahrenheit and Celsius

ClrHome
Carte du jour("FROM","FAHRENHEIT",1,"CELSIUS",two,"KELVIN",3)
Lbl ane
Prompt F
5(F-32)/nine→C
C+273.15→G
Goto four
Lbl 2
Prompt C
C+273.xv→1000
9C/five+32→F
Goto iv
Lbl 3
Prompt Grand
K-273.15→C
9C/five+32→F
Lbl 4
ClrHome
Disp F,C,K
Output(one,1,"F°")
Output(2,1,"C°")
Output(3,1,"K")
Finish

9) Standard DeviationThis one isn't an actual program, but it works just as well.  On the TI-83/84/85 series, you lot can summate standard difference using the 2nd/LIST/Math Carte, making sure to add together braces around your numbers and commas to separate them, like this:  stdDev ( {ane,2,3,iv,five} = 1.58 10) Radical Expression Simplifier

:ClrHome
:Disp "SIMPLIFIES xth root of North"  (MATH5)
:Prompt X,N
:For(F,iPart(Twenty\/N+.1),ii,-1)
:If fPart(North/F^Ten
:Terminate
:Output(5,i,F
:ii+iPart(log(F->One thousand
:Output(5,G,"*
:Output(5,K+1,X
:K+iPart(log(X->Chiliad
:Output(5,K+2,"x\/
:Output(v,M+iv,North/F^X

or

Lbl 3
prgm CLEAR
Disp "INPUT THE NUMBER"
Dis "UNDER THE"
Input "RADICAL: ",X
iPart(Sqrt (X) + 1 —> A
Lbl ane
If fPart(X/A^ii)=0
Then
Goto 2
Else
(A-1) —> A
Goto ane
Lbl ii
prgmCLEAR
Text (one,ane,A, "Sqrt(",X/A^ii,")")
Pause
Bill of fare("Find ANOTHER","YES",3,"NO",4)
Lbl 4
Stop

Accept fun and good luck!

-Brian

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Source: https://mcelroytutoring.com/blog-post.php?id=4332