How ı can write this function on Matlab

I will enter an x ​​value

Answer 1

[Sulaymon Eshkabilov]

Hi,

Here is one of the possible solutions for x having a single value:

function Y = MY_fun(x)
if x>=1 && x<10
    Y = exp(-x-1)/(log10(x)+log(x));
elseif x>=10
    Y=sin(3*x)/sqrt(3*pi);
else
    Y = x^(-exp(1)+x)+sqrt(x)*abs(x);
end
end

[madhan ravi]

Homework well done!

[Emre Tutucu]

thanks for your answer but its doesnt work

Error like that.....

Cannot find an exact (case-sensitive) match for 'soru3'

The closest match is: Soru3 in C:\Users\HP OMEN\Desktop\MATLAB\Soru3.m

Did you mean:

>> Soru3

[Sulaymon Eshkabilov]

where did you get: Soru3 or soru3

In the above code, there is no such function or command.

[Rik]

The posted code doesn't match the equations.

@Sulaymon: we discourage people from posting fully working solutions to homework problems, as that invites cheating.

If you want to allow array inputs: make sure the formulae themselves allow array operations (so .* etc). Pre-allocate an output vector. Then for every piece of the function create a logical mask. You can fill your output with y(L)=f(x(L));.

[Emre Tutucu]

my file's name is Soru3

[Emre Tutucu]

@Rik please can u show me how i can do this. because its dont work still :(

[Rik]

It is your homework, not mine. Show that you have put in some effort. You already have a good idea about how to solve it, because you have a nearly correct answer. What did you try?

[Emre Tutucu]

thats right but im working about that. i didnt understand whats wrong ...

clc;
clear all;

function y(L)=f(x(L))
if x>=1 || x<10
    Y = exp(-x-1)/(log10(x)+log(x));
elseif x>=10
    Y=sin(3*x)/sqrt(3*pi);
else
    Y = x^(-exp(1)+x)+sqrt(x)*abs(x);
end
end

[Walter Roberson]

You should only ever have exactly one script that contains "clear all" in your code base, as part of a script that is designed to reset MATLAB including closing all graphics and files and triggering garbage collection.

Having "clear all" in code is rather like Wile E. Coyote exploding the bridge underneath himself and expecting to stay safe in mid-air as long as he does not look down.

[Walter Roberson]

Your code does not ever call your function f.

function y(L)=f(x(L))

That syntax is not valid. The left side of the "=" in a function statement must be one of:

• A single named plain variable with no indexing at all (including no structure references)
• [] around a list of named plain variables variables with no indexing at all (including no structure references). Commas are recommended between the variable names, but spaces are also accepted. Semi-colons are not accepted
• The special name varargout may be used as the left side by itself, or as the last entry in a list

The right side of the "=" in a function statement must be one of:

• a single named plain variable with no indexing at all (including no structure references) that acts as the function name
• function name as above followed by () with nothing in the ()
• function name as above followed by () and inside the () a comma-separated list of named plain variables with no indexing at all (including no structure references).
• Inside the () the special name varargin may be used as the only entry, or as the last entry in a list
• Inside the () the special token ~ may be used in place of any entry, such as function f(~,x)

Your code is not valid syntax because it tries to index the output variable, and because inside the () list on the right, it uses something that is not a plain variable or ~

[madhan ravi]

Sulaymon comments:

%clc;                % no need
%clear all;          % no need 
function Y=f(x)      % Must be
% The rest comes here
end

[Emre Tutucu]

thanks for your comment but i got it. wrong was not in code, in my matlab version. İts okay now.

Thanks again :)

[Sulaymon Eshkabilov]

Your code had a few potential errs which are not MATLAB version problem.