TI-89- How do I make programs?

[Peppino]

I would like to make a program for which you give two vectors, A and B, and it returns (A^2 + B^2)^0.5. How can I do this?

 

[Bill Simpson]

Go here

http://education.ti.com/guidebooks/graphing/89ti/TI89TitaniumGuidebook_Part2_EN.pdf

and scroll down the left hand column table of contents until you get to Programming. Then open up that section of the manual with a click. Step through the introduction page by page and it will show you how to enter and later run a program or function of your own.

 

[Peppino]

thanks.

 

[nathanthegreat]

If you just want a simple program...

:Prompt a,b
:Disp (a^2-b^2)^.5

Now, that is the most basic version, and not very good looking, but it will get the job done.

 

[LudusRex]

There are several steps you can follow to create a program on your TI-89 that calculates (A^2 + B^2)^0.5 for two given vectors, A and B.

1. First, press the "Apps" button on your TI-89 and select "New..." to create a new program.

2. Give your program a name, such as "Vector Magnitude," and press enter.

3. Next, you will need to define your two vectors, A and B. To do this, press the "Vars" button and select "Vector." Press enter to create a new vector and give it a name, such as "A." Repeat this step to create a vector named "B."

4. Now, you will need to input the values for your vectors. Press the "2nd" button and then "F1" to access the "Vec" menu. Select "Input" and enter the values for vector A. Repeat this step to input the values for vector B.

5. Next, you will need to calculate the magnitude of each vector. To do this, use the formula (A^2 + B^2)^0.5. You can do this by pressing the "2nd" button and then "F3" to access the "MATH" menu. Scroll down to select the "^" symbol and enter the values for A and B inside the parentheses.

6. Finally, to display the final result, use the "Disp" command and enter the calculated magnitude for each vector.

Your program is now complete! You can test it out by entering different values for vectors A and B and it will return the magnitude of the two vectors. Remember to save your program by pressing the "F1" button and selecting "Save" before exiting.