Computing Equation values for its unknown variables

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.

Answer 1

[Dyuman Joshi]

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

[aliza mustafa]

Hi. thanks for helping. I wrote equation by myself but may be some characters were not comapatible. But thanks for guiding :)

[Dyuman Joshi]

Is the problem still there?

[aliza mustafa]

Its resolved now.

[Dyuman Joshi]

That's good to know.