how do you user input a equation in matlab ? i used inline function but unable to plot the equation. suppose i want my input equation as x-cos(x). and than plot it. how do i do it? Is the following code correct ?

 eq = input('enter the equation in x:','s');
 g = inline(eq,'x');

Answer 1

[Star Strider]

Try this instead:

g = str2func(['@(x)' vectorize(eq)]);           % Create The Function As An Anonymous Function

Then call your ‘g’ function as you would call any other function:

f = g(x);

[Walter Roberson]

To emphasize: inline() is considered obsolete and has been recommended against for a decade or so.