my problem is about @.

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Sevval Zengin
Sevval Zengin 2022-2-3
评论： Sevval Zengin 2022-2-3
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
  2 个评论
Stephen23
Stephen23 2022-2-3
Note that syms does nothing here. Get rid of it.
Sevval Zengin
Sevval Zengin 2022-2-3
Thank you so much Stephen for your answer.

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采纳的回答

Stephen23
Stephen23 2022-2-3
编辑：Stephen23 2022-2-3
Ran in:
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

更多回答（1 个）

Arif Hoq
Arif Hoq 2022-2-3
Ran in:
try it:
syms x
f=@(x) x.^2
f = function_handle with value:
@(x)x.^2
quad(f,0,2)
ans = 2.6667
  2 个评论
Stephen23
Stephen23 2022-2-3
Note that syms does nothing here.
Sevval Zengin
Sevval Zengin 2022-2-3
thank youuu so much

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