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Expanding using wolfram

Mathematics
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wait i messed up the function
idk how i am suppoosed to deal with this. Like i have mathematica but not either sure how to use it

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8.9824391E-7(x^6-94x^5+3529x^4-67624x^3+695548x^2-3624640+7425000)-3.04470962E-5(x^6-88x^5+3001x^4-49618x^3+397840x^2-1237600x)+2.822089947E-4(x^6-84x^5+2689x^4-40734x^3+288208x^2-742560x)- 3.25571254E-4(x^6-81x^5+2476x^4-35436x^3+234880x^2-571200x)+1.742019122E-4(x^6-77x^5+2220x^4-29884x^3+187520x^2-435800x)-6.2386735E-5(x^6-74x^5+2049x^4-26644x^3+162668x^2-371280x)+1.96362980E-6(x^6-66x^5+1681x^4-20556x^3+119980x^2-265200x)
8.98244x10^-7 (x^6-94 x^5 3529 x^4-67624 x^3 695548 x^2 3800360)-304471. (x^6-88 x^5 3001 x^4-49618 x^3 397840 x^2-1237600 x) 0.000282209 (x^6-84 x^5 2689 x^4-40734 x^3 288208 x^2-742560 x)-3.25571
That's what comes out when I pastein Wolfram...
What are you supposed to be doing, solve for x?
ummm well actually it didnt allow u to paste everything cuz the input was too large and therefore u got the incorrect answer but i need to expand the following
@ParthKohli @Hero Can you check this out?
What are you trying to expand that for?
Its expand and find like terms to get a single polynomial
Expand[expression]
Oh, then "expansion" is not the word.
Together[expression]
@swissgirl, you should probably get maple, quick
ohhhhhhhhh where wld i do that on wolfram or mathematica?
I have mathematica but i have no clue how to use it
Mathematica, of course!
Parth can u guide me step by step cuz i am stupiddddd
Just go to any notebook and type in "Together[your expression]".
And then, shift+enter for output.
ohhhh ok let me try that give me a sec? Hero do u have a program on maple for interpolating lagrange polynomials?
Maple is OK, got to type in a lot of *'s.....
lol idk how to program at allllllll lol So if the program isnt given to me then I wont know how to use it and for this specific section My textbook didnt provide coding so I am stuck
@swissgirl In Mathematica, click on Palettes on the menu bar. You should see a Basic Math Assistant.
okkkkkk
There, you get a list of symbols and commands. :)
I suppose that mess is the n+1 points, is that it?
yup lol
its the \(f(x_n)*L_n(x)\) polynomials
I got the wrong answer though. hmmm I wonder y
What does together mean?
Wow, @swissgirl, I'm sorry you're experiencing such difficulty
idk I plugged term by term into the calculator and got the correct answer but mathematica for some reason gave me the wrong answer
http://mathworld.wolfram.com/LagrangeInterpolatingPolynomial.html Says Mathematica implents as InterpolatingPolynomial[data,var]
I don't know much about Math :P
http://reference.wolfram.com/mathematica/ref/InterpolatingPolynomial.html
like look only the first polynomial has like a term without an x 8.9824391E-7(x^6-94x^5+3529x^4-67624x^3+695548x^2-3624640+7425000) so 8.9824391E-7*7425000=6.67 but mathematica gives me this number that is wayyy offff
THHANNNKKKKSSSS ESTUDIERRRRRRRRRRRR
omg i have been sitting hours here.
I hope you can figure it out, I haven't Mathematica....
@estudier I GOT THE CORRECT ANSWEERRRRRRRRRRR lol OMG Finallllyyy
@experimentX like y didnt mathematica process all my polynomials. It was giving me an incorrect answer
huh? really?
yaaaaa its weird
I may have inputed it incorrectly
what is this? 8.9824391 E - 7
8.9824391*10^-7
ohh mayge i gotta bracket the -7
let me try that
But which brackets would u suggest I use?
probably due to that ... try to input piecewise.
( ) small brackets
THANKS :)
nah it became wierder
let me try 10^-n instead of E
8.9824391*10^(-7)
Or click (from menu) Palette > Basic math assistant
much closer like just a bit off like instead of 6.67 i have 3.47
idk whatever too bad
Together[(8.9824391*10^-7) (x^6 - 94 x^5 + 3529 x^4 - 67624 x^3 + 695548 x^2 - 3624640 + 7425000) - (3.04470962*10^-5) (x^6 - 88 x^5 + 3001 x^4 - 49618 x^3 + 397840 x^2 - 1237600 x) + (2.822089947*10^-4) (x^6 - 84 x^5 + 2689 x^4 - 40734 x^3 + 288208 x^2 - 742560 x) - (3.25571254*10^-4) (x^6 - 81 x^5 + 2476 x^4 - 35436 x^3 + 234880 x^2 - 571200 x) + (1.742019122*10^-4) (x^6 - 77 x^5 + 2220 x^4 - 29884 x^3 + 187520 x^2 - 435800 x) - (6.2386735*10^-5) (x^6 - 74 x^5 + 2049 x^4 - 26644 x^3 + 162668 x^2 - 371280 x) + (1.96362980*10^-6) (x^6 - 66 x^5 + 1681 x^4 - 20556 x^3 + 119980 x^2 - 265200 x)]
oh whoops in mathematica the exponent was where it needed to be
hmm ... try doing this in pieces ... check every polynomial
ohhh should do that let me try that
okkkk i think its because i rounded off a number. I think its my problem. Thankksss for helping me outtt :)))))))
no probs!! have fun swissgirl
:)

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