How to find partial derivation for y with respect to x given y has a size of 3 by 300 and x has a size of 2 by 3?

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Bishwam Pattnaik 2021-9-27

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https://ww2.mathworks.cn/matlabcentral/answers/1461629-how-to-find-partial-derivation-for-y-with-respect-to-x-given-y-has-a-size-of-3-by-300-and-x-has-a-si

编辑： Amith 2024-10-17

x=rand(2,3);

y=rand(3,300);

Derivation=diff(y)./diff(x);

It didnt work.

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Amith 2024-10-17

编辑：Amith 2024-10-17

在 MATLAB Online 中打开

Hi Bishwam,

To find partial derivative of (y) with respect to (x) in MATLAB, given that ( y ) is a ( 3 X 300 ) matrix and ( x ) is a ( 2 X 3 ) matrix, you can have a look at this example:

% Define symbolic variables
syms x1 x2 x3
y_sym = sym('y', [3, 300]);
% Example function f(x, y)
f = x1 * y_sym(1, :) + x2 * y_sym(2, :) + x3 * y_sym(3, :);
% Partial derivative of f with respect to x1
df_dx1 = diff(f, x1);
% Display the result
disp(df_dx1);