How to Make a Program That Will Automatically Solve the Quadratic Formula on a TI 83 Graphing Calculator

Turn on the TI-83 Calculator., Hit the PRGM button., Switch to New., Name Your Program., Make the First Line., Make the Second Line., Make the Last Line., Turn Your Calculator Off and Back On., Use.

8 Steps 2 min read Medium

Step-by-Step Guide

  1. Step 1: Turn on the TI-83 Calculator.

    This is pretty straightforward.
  2. Step 2: Hit the PRGM button.

    This will open the "Program" section of your calculator. , Once in here click on Create New. , Give it a suitable name, for this example, QUAD will suffice. , To do this, hit the PRGM button again.

    Switch to I/C and select Prompt.

    After prompt, enter the letters A,B,C, all separated by a comma (the comma is right above the number 7 on the calculator).

    Press Enter to start the second line. , For this line, a lot of math will be involved, so pay close attention to what you type and make sure it matches the picture.

    Hit the PRGM button again, and again move to I/C, only this time, select Disp.

    After you select Disp, type in (-B+√((B^2)
    -4AC))/(2A). , This line is extremely similar to the one before, with one small change.

    Hit the PRGM button again, and again move to I/C, this time, select Disp.

    Type in (-B-√((B^2)
    -4AC))/(2A). , This will save the program and allow you to execute it when you choose. , Now, whenever you find an equation that requires the quadratic formula, simply input the values for A, B, and C where directed and enjoy your answers!
  3. Step 3: Switch to New.

  4. Step 4: Name Your Program.

  5. Step 5: Make the First Line.

  6. Step 6: Make the Second Line.

  7. Step 7: Make the Last Line.

  8. Step 8: Turn Your Calculator Off and Back On.

Detailed Guide

This is pretty straightforward.

This will open the "Program" section of your calculator. , Once in here click on Create New. , Give it a suitable name, for this example, QUAD will suffice. , To do this, hit the PRGM button again.

Switch to I/C and select Prompt.

After prompt, enter the letters A,B,C, all separated by a comma (the comma is right above the number 7 on the calculator).

Press Enter to start the second line. , For this line, a lot of math will be involved, so pay close attention to what you type and make sure it matches the picture.

Hit the PRGM button again, and again move to I/C, only this time, select Disp.

After you select Disp, type in (-B+√((B^2)
-4AC))/(2A). , This line is extremely similar to the one before, with one small change.

Hit the PRGM button again, and again move to I/C, this time, select Disp.

Type in (-B-√((B^2)
-4AC))/(2A). , This will save the program and allow you to execute it when you choose. , Now, whenever you find an equation that requires the quadratic formula, simply input the values for A, B, and C where directed and enjoy your answers!

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L

Laura Sullivan

Dedicated to helping readers learn new skills in organization and beyond.

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