Re: adding Vectors on the ti85
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Re: adding Vectors on the ti85
Garvin wrote in message
<3.0.1.32.19971012162418.0068ec30@postoffice.worldnet.att.net>...
>In my honors physics class, we're starting to learn to add vectors.
>
>I know how to add vectors by typing in the x components (R cos theta) and y
>components (R sin theta). Also Unit vector notation. Here are 2 examples of
>what i mean:
>
> |y (j)
> |
> |
> ------------x or (i) <---- coordinate plane
> /
> /
> /z (k)
>
>vectors:
> 35m/s at 40 deg
> 35 cos 40=26.8 < x component
> 35 sin 40=22.5 < y component
> Answer is 26.8i + 22.5j
>
> 75m/s at 160 deg
> 75 cos 160= -70.47 < x component
> 75 sin 160= 25.7 < y component
> Answer is -70.47i + 25.7j
>
>Can you do this in the vector menu automatically on the Ti85?
>Thanks
Sure. Make sure the calc is in Degree mode (2nd MODE to check) then type
[35<40] and hit ENTER (the symbol between 35 and 40 is the angle sign,
accessesd by 2nd comma)
Answer is [26.8115555092 22.497566339]
or
[75<160] same angle sign here.
[-70.4769465589 25.6515107494]
You can even add the two vectors by putting in [35<40]+[75<160]
answer is [-43.6653910498 48.1490770885]
Tom Lake
References: