How can I present time variant equation in Matlab

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Adham Ahmed 2023-1-25

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回答： Piyush Patil 2023-3-1

采纳的回答： Piyush Patil

How can I present time variant equation in Matlab

for example it F(x)=x^2+3x+4

how to present F(x,t)

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Adham Ahmed 2023-1-25

How about Z=(f(x),t)

Dyuman Joshi 2023-1-25

Give an example for Z as a function of f(x) and t, and once again, explicitly specify what you mean by 'to present'.

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Piyush Patil 2023-3-1

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Hello Adham,

I am assuming that you want to define a function of type – z(f(x), t).

So here, you are having a function ‘z’ that depends on f(x) and t. You can represent ‘z’ using an anonymous function with two input arguments – x and t.

Let’s consider an example –

z(f(x), t) = f(x)*t + t^2

and

f(x) = x^2 + 3*x + 4

You can define z and f as follows -

% Define the function f(x)
f = @(x) x^2 + 3*x + 4
% Define the function z(f(x), t)
z = @(x, t) t*f(x) + t^2;
% Evaluate the function Z at x = 2 and t = 3
z(2,3)