my problem is about @.

syms x

f=@x x.^2

quad(f,0,2)

System give error that 'Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.'

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PLEASE HELP ME

[Stephen23]

Note that syms does nothing here. Get rid of it.

[Sevval Zengin]

Thank you so much Stephen for your answer.

Answer 1

[Stephen23]

f = @(x) x.^2;
%    ^ ^ you forgot these parentheses
q = quad(f,1,2)

q = 2.3333

How to define anonymous functions is explained here:

https://www.mathworks.com/help/matlab/matlab_prog/anonymous-functions.html

[Sevval Zengin]

Thank you so much

Answer 2

[Arif Hoq]

try it:

syms x
f=@(x) x.^2

f = function_handle with value:
    @(x)x.^2

quad(f,0,2)

ans = 2.6667

[Stephen23]

Note that syms does nothing here.

[Sevval Zengin]

thank youuu so much