Computing Equation values for its unknown variables

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Hi @all,
My question is a bit basic but I am confused I am getting error in that.
I have equation and I have to find its values for its unknown. The equation is:
E_t = @(t) 1.3 + 0.44 * sin(2 * pi *t)+ 0.10 * sin(3 * pi * t);
t = 0:0.05:10;
Now when I run:
output = E_t(t)
It gives me following error:
Invalid text character. Check for unsupported symbol, invisible
character, or pasting of non-ASCII characters.
I am confused what I am doing wrong here. Can anyone please guide me about it? Any help will be highly appreciated. thanks in advance.

Accepted Answer

Dyuman Joshi
Dyuman Joshi on 25 Sep 2022
Edited: Dyuman Joshi on 25 Sep 2022
It seems like you have copy-pasted the expression from somewhere, and the text is not compatible.
Manually write the expression and you will be good to go -
E_t = @(t) 1.3 + 0.44*sin(2*pi*t) + 0.1*sin(3*pi*t)
E_t = function_handle with value:
@(t)1.3+0.44*sin(2*pi*t)+0.1*sin(3*pi*t)
t = 0:0.05:10;
E_t(t)
ans = 1×201
1.3000 1.4814 1.6395 1.7547 1.8136 1.8107 1.7494 1.6403 1.4998 1.3469 1.2000 1.0749 0.9826 0.9284 0.9124 0.9307 0.9766 1.0428 1.1223 1.2094 1.3000 1.3906 1.4777 1.5572 1.6234 1.6693 1.6876 1.6716 1.6174 1.5251
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