this is chemistry and the calculations i cant do
2006-10-02 21:22:54 · 2 answers · asked by eileenclaytonuk 1 in Education & Reference ➔ Higher Education (University +)
It depends on the curve. If your data is correct the curve is likely to be one of three shapes; sigmoid (an S shape), linear (straight) or a curve of some description. For the sigmoid curve only take the straight linear bit in the middle and use the y = mx + c (m = slope, c= intercept) to calculate the points. The same goes for a linear data set. If the data set is curved all the way (if its linear for part of it use the linear part, this is the calibration "range") then you will need to differentiate to get the equation.
Or, if you fancy cheating, stick all the data into Excel, click on all the data points and "add trendline", fiddling until it matches your curve. One of the options is add equation to chart, do this and its done for you.
2006-10-02 21:51:42 · answer #1 · answered by Bunglebear 2 · 0⤊ 0⤋
It depends on the curve, if it simple to mathematical model or else, you read as it is!
2006-10-03 04:44:00 · answer #2 · answered by Zee99 3 · 0⤊ 0⤋