How do you find the extrema of a function in Matlab?

How do you find the extrema of a function in Matlab?

To add the Find Local Extrema task to a live script in the MATLAB Editor:

1. On the Live Editor tab, select Task > Find Local Extrema.
2. In a code block in the script, type a relevant keyword, such as extrema or find . Select Find Local Extrema from the suggested command completions.

How do you find the max position in Matlab?

[val, idx] = max(A, [], 2); The idx part will contain the column number of containing the max element of each row. You can use max() to get the max value. The max function can also return the index of the maximum value in the vector.

What is the minimum value of f/x y?

f(x,y) has minimum value at (-3,0), which is f(x,y) = 12 + 9 – 18 = 3.

How do you use the MIN MAX function in Matlab?

How to use the min() and max() functions? According to the Mathworks website, using minVal = min(FHNout); and maxVal = max(FHNout); should work.

How do you find the maximum number of elements in MATLAB?

Create a matrix A and compute the largest elements in each column, as well as the row indices of A in which they appear. Create a 3-D array and compute the maximum over each page of data (rows and columns).

How do you find the maximum value of a matrix?

For example, if A is a matrix, then max(A,[],[1 2]) computes the maximum over all elements in A, since every element of a matrix is contained in the array slice defined by dimensions 1 and 2. M = max(A,[],’all’,nanflag) computes the maximum over all elements of A when using the nanflag option.

How do you find the maximum value of a column vector?

M = max(A,[],dim) returns the maximum element along dimension dim. For example, if A is a matrix, then max(A,[],2) is a column vector containing the maximum value of each row.

What does the formula M = Max(a[],vecdim mean?

M = max (A, [],vecdim) computes the maximum over the dimensions specified in the vector vecdim. For example, if A is a matrix, then max (A, [], [1 2]) computes the maximum over all elements in A, since every element of a matrix is contained in the array slice defined by dimensions 1 and 2.