Solving for an x value using ppval
2 ビュー (過去 30 日間)
古いコメントを表示
I have created a linear piecewise function using interp1 which works beautifully given the x value. Is there a way for which I could solve for an x value given the Y value? Example:
hotStreamInterp = interp1(B,Hhotpt, 'linear', 'pp')';
x = fsolve(480 = ppval(hotStreamInterp, x_unknown));
How could I properly write this? Thank you.
0 件のコメント
採用された回答
Andrew Newell
2012 年 1 月 3 日
It depends - if x and y are 1-1, you can just switch them in the above two lines. In general, however, there is probably more than one x value for a given y value. Then you'll have to decide whether you want x from a particular interval or all the values of x. If you know where the extrema in x are, you could interpolate in the intervals between extrema.
その他の回答 (0 件)
参考
製品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!