Define a function f$$for computing cos$($x$^2)[$this means that f$$should be the function handle$].$

Use this function to compute f$$for the provided values of x$.$

Assign the result to S$[$S$$should be a vector$]$ and then plot S$$as a function of x$$using point markers $($no lines$).$ Please use the syntax g$1=$ plot$(...).$

Find those values of x$$that yield f$<mn\; id="EditorElement\_1211721">0</mn><mtext\; id="EditorElement\_1211722"></mtext><mi\; id="EditorElement\_1211723">(</mi>$without using a for$-$loop$).$ Assign the result to xneg.

What are the corresponding values of f$?$ Assign them to Sneg.

Add these data points to the previous plot using circles. Please use the syntax g$2=$ plot$(...).$

Your output should look something like this: