How to program the “Quadratic Formula” on TI-84, TI-83

24 Comments on "How to program the “Quadratic Formula” on TI-84, TI-83"

1. RacoonBurglar says:

   February 4, 2013 at 8:06 pm

   1:20 saves time
2. Thao Dang says:

   February 4, 2013 at 8:17 pm

   How can I make the answer become normal square root?? I don’t need it become real
3. Terrythechoirnerd18 says:

   February 4, 2013 at 9:07 pm

   I put it in the calculator, but I want the program to stay in my calculator whenever I clear it, but it disappears, so what should I do 
4. ExpertPlusGuitarHero says:

   February 4, 2013 at 9:58 pm

   How do I make imaginary solutions appear with this program? I’m already in Math Analysis / Pre-Calculus Honors if you’re wondering why.
5. Schofield Miller says:

   February 4, 2013 at 10:49 pm

   omg thanks so much. this will come in handy
6. Lisa Austin says:

   February 4, 2013 at 11:22 pm

   2nd Quit
7. Lisa Austin says:

   February 5, 2013 at 12:15 am

   2nd Quit
8. quisabest says:

   February 5, 2013 at 1:04 am

   thank you so much
9. sofivestarish says:

   February 5, 2013 at 1:50 am

   I just programmed this and my screen looks EXACTLY like yours but I got -5 and -5…. help?!
10. BriannaWazHere9 says:

    February 5, 2013 at 2:18 am

    Oh My GOD thnck you so much saved me so much work
11. Tadiyah Danforth says:

    February 5, 2013 at 2:40 am

    *you’re
12. GETURHANDSUP916 says:

    February 5, 2013 at 3:26 am

    Your welcome
13. Devanand Kanhai says:

    February 5, 2013 at 3:46 am

    thank you
    
14. Duoonlol says:

    February 5, 2013 at 4:11 am

    this is not the exact way but it works , use GRAPH then CLEAR , and then follow what he did after he shows his homework
15. Lili Huang says:

    February 5, 2013 at 4:27 am

    i’m pretty sure graphing calculators save automatically, so after Real, click 2nd mode (the quit button) and you’ll have a blank screen. then when you click Program, Quad should be there. it was for me, but i’m using a TI-83Plus. hope that helps
16. Kelly Torza says:

    February 5, 2013 at 4:28 am

    I’m having the same problem as this guy. When you show us your homework paper, the calculator goes out of view then returns blank. What exactly do we need to do after Real before we can enter our equation?
17. ComaLouCasualRock says:

    February 5, 2013 at 4:58 am

    Don’t worry, “Archived” means On the TI-83+, archived means that a program, list, equation, picture, or other item is stored in the calculator’s Flash memory instead of its RAM. This can be used so that the item does not get erased when the RAM is cleared, or to reclaim free RAM for other programs and files. However, archived items cannot be executed or modified, so they must be unarchived first.
18. ComaLouCasualRock says:

    February 5, 2013 at 5:38 am

    You can do everything you just said…then to use your “Archived” program named “QUAD” or whatever you liked,
    1- You will find a ” * ” on the name of the file or program = which means ARCHIVED. To use it, press ” 2ND” key..The ” + ” sign, we are looking back into its memory.Press 2 and you will find a list starting with ” All…. ” Press the 1, and a black arrow will indicate the file name and the star mentioned above, press ” ENTER’ and voila! It becomes usable again!
19. ComaLouCasualRock says:

    February 5, 2013 at 5:43 am

    This is awesome! It really worked! Thanks very much, this is greatly appreciated!
20. Angelina267 says:

    February 5, 2013 at 6:26 am

    thanks man!
21. marteney20 says:

    February 5, 2013 at 6:39 am

    this sucks because you didnt tell us wheat to do after you finished typing all the program stuff in. Were we suppose to save it or what?
22. KingKaryKo says:

    February 5, 2013 at 7:32 am

    can you do a cubic one????
23. danny81299 says:

    February 5, 2013 at 8:17 am

    Great Program! It can be furthered shortened though. The two quadratic equation lines that allow the calculator calculate both values can be shortened from
    (-B+sqrt(B^2-4AC))/2A) STO> D
    (-B-sqrt(B^2-4AC))/2A) STO> E

    to

    (-B+{1,-1}sqrt(B^2-4AC))/2A) STO> L1

    The second will give the answer as a list, hence the use of the L1 variable instead of D or E. In the case of your problem (a=1, b=6, c=5), the result would be {-1 -5} instead
24. luuuuver says:

    February 5, 2013 at 8:39 am

    Thanks It was easy to follow and helped a lot