Gradient

MATLAB gradient derivative troubleshooting

MATLAB gradient derivative troubleshooting
  1. What does gradient () do in MATLAB?
  2. How to find the gradient of a multivariable function in MATLAB?
  3. How do you specify a derivative in MATLAB?

What does gradient () do in MATLAB?

[ FX , FY ] = gradient( F ) returns the x and y components of the two-dimensional numerical gradient of matrix F . The additional output FY corresponds to ∂F/∂y, which are the differences in the y (vertical) direction. The spacing between points in each direction is assumed to be 1 .

How to find the gradient of a multivariable function in MATLAB?

Gradient of Multivariable Function

Use symbolic matrix variable to express the function f and its gradient in terms of the vector x . syms x [1 3] matrix f = sin(x)*sin(x). ' To show the gradient in terms of the elements of x , convert the result to a vector of symbolic scalar variables using symmatrix2sym .

How do you specify a derivative in MATLAB?

Df = diff( f , var ) differentiates f with respect to the differentiation parameter var . var can be a symbolic scalar variable, such as x , a symbolic function, such as f(x) , or a derivative function, such as diff(f(t),t) . Df = diff( f , var , n ) computes the n th derivative of f with respect to var .

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