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Re: Solve Equation involving Error Function


Hello,

There is no solution:

Erfc[x]<2

implies

t2-t1 Erfc[0.0005/Sqrt[k]>0.

I guess you forget a MINUS.
Then

t1 = {87, 87, 87};
t2 = {80, 81, 86};

Do[
sol[i] =
    k /. Solve[t1[[i]] - t2[[i]]*Erfc[-0.0005/Sqrt[k]] == 0, k][[1]],
 {i, Length[t1]}]

does the job.

Bye
Ben


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