清空筛选条件
清空筛选条件

finding specific values in a function

2 次查看（过去 30 天）
Sean Smith
Sean Smith 2011-9-16
So i have a function f(x) and it is basically a curve. I am trying to find the point on in then the curve is at its minimum. To find the y coordinate i just used min(f(x)). My question is how do I find the x value that corresponds to that. x is a vector of about 100 terms if that makes a difference. The function is kind of long and complicated or else I would just solve for x. Is there a command that will give me that matching x value to the y minimum? Thank You.

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2011-9-16
[y, yidx] = min(f(x));
Then x(yidx) is the x that evaluates to the minimum.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Geometric Transformation and Image Registration 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by