Writing a script that mirrors the abs function? I'm doing something wrong but not sure what

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Trisha Katz 2019-10-20

评论： the cyclist 2019-10-20

Here is the question:

The abs function finds the absolute value of a number or numbers in a matrix.

Using only relational operators and no built-in MATLAB functions, write a script

that recreates the abs function.

Here is what I did:

prompt='Enter a number';
x=input(x) 
if x>0
    disp(x)
elseif x<0
    disp(x*(-1))
end

Help? Please?

the cyclist 2019-10-20

In the future, it's best to include the complete error message that you are seeing. Also, I used the CODE icon to format your code.

the cyclist 2019-10-20

I think you meant

x=input(prompt)

Trisha Katz 2019-10-20

Do I set the number equal to x?

the cyclist 2019-10-20

I suggest you read the documentation for the input function, to understand what it does.

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