- For assistance computing the derivatives
*f*'(*x*),*f*''(*x*), etc., try the Derivative Calculator. - The buttons under the graph allow various manipulations of the graph coordinates.
- The text input fields for
*f*(*x*),*f*'(*x*), etc., can accept a wide variety of expressions to represent functions. - The text input field for
*c*can accept a real number in decimal notation.