Lecture 3: GRAPHS OF FUNCTIONS (PART II) - Piecewise defined functions. - Trigonometric functions. - The case of sin(1/x) - Plotting an unplottable function Share this:FacebookTwitterGooglePinterestLinkedInEmailTumblrPrint Leave a Comment Click here to cancel reply. Name * Email (will not be published) * Website Comment Notify me of follow-up comments by email. Notify me of new posts by email.