Sumproduct polynomial using curly brackets

[Atom]

I have forgotten how this works, but I'm trying to calculate a polynomial value (y = C0 + C1*X + C2*X^2).
I remember the formula is something like this: =sumproduct(A1,B1:B3^{0,1,2})
Where A1 is any value and B1:B3 contains the polynomial coefficients.
However, what I typed above is not correct.
How to?

[TMS]

See the responses to this link: https://newtonexcelbach.com/2009/09/...ial-functions/

[TMS]

Ok, after some playing:

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Or

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Where B1 contains the value for X, B2:B4 contain the coefficients, and C2:C4 contain the powers (0, 1, 2)

So, A + Bx + Cx^2 => B2*B1^0 + B3*B1^1 + B4*B1^2 => B2*B1^C2 + B3*B1^C3 + B4*B1^C4

[Atom]

Got it. Thank you.

[TMS]

You're welcome. Thanks for the rep.



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