Find Arc Length with TI-Nspire Calculator

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ineedhelpnow
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how do i use the nspire to find arc length?
 
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I don't think that there is an arclength function. But the formula for arclength is $\displaystyle \begin{align*} \int_a^b{ \sqrt{ 1 + \left( \frac{\mathrm{d}y}{\mathrm{d}x} \right) ^2 } \, \mathrm{d}x } \end{align*}$, and the TI N Spire does have the ability to solve integrals.
 
what i normally do is use the integration function but i noticed there was something for arc length and i figured it would be much easier (if i knew how to use it) using that instead of inputting the whole thing.

oh that's all it does? i thought all i had to was put in the original equation and it would solve. never mind then. function isn't as useful as i thought. thanks tho.
 
ineedhelpnow said:
what i normally do is use the integration function but i noticed there was something for arc length and i figured it would be much easier (if i knew how to use it) using that instead of inputting the whole thing.

oh that's all it does? i thought all i had to was put in the original equation and it would solve. never mind then. function isn't as useful as i thought. thanks tho.

I don't own one of those, but I own a TI-89 and have owned many TI graphing calculators in the past, and I am certain you could write a program that would prompt you for the limits and the function, and then would compute the arc length and then output the result. I used to love programming my calculators. :D
 
i used to have the ti-89 but i didnt really use it for anything besides simple stuff. once i got the ti-nspire, it was way easier because everything is already formatted. i think the best idea is to just use with the calculator offers me because I am pretty confident ill break it otherwise. :D