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# root function in mathcad

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## root function in mathcad

(OP)
Hi,

I have a problem regarding the root function in Mathcad.

I have measured capacitance values in a text files and i have imported it into mathcad. I have evaluated capacitance value which is a function of permittivity of the material.

I made a function (measured capacitance-evaluated capacitance), so that i can fine for what value of permittivity, the evaluated capacitance will equal to measured one and i can store that permittivity  data and later plot it in a graph.

In mathcad, i need to pass the measured capacitance data manually for each frequency point and note down the root, it says the root function is for scalar quantities.

Can any one help to make such a loop so that i can find the root for multiple inputs of measured capacitance

### RE: root function in mathcad

If you've just got a single vector, then you could try applying the vectorize operator - look it up in Help (key sequence is ctl - (minus key)), eg, vectorize the whole expression f(x) where x is a vector.

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