
Evaluate and integrate equations in Grapher on Mac
Grapher’s Equation menu includes functions for evaluating equations and performing integrations.
Evaluate an equation at a specific point
- In the Grapher app  on your Mac, create or open a graph. on your Mac, create or open a graph.
- Select an equation, then choose Equation > Evaluation. 
- Use the Evaluation options to enter the point to evaluate in the Input field (3D graphs have two input fields), then press Return. - Automatically calculated values appear in the list below the Input field. 
- You can do any of the following: - View related equations on the graph: Select equations listed under Display. 
- Change the color of related equations: Click the color well next to the equation. 
- Add selected related equations to the graph: Click Stroke. 
 
Compute integral values
- In the Grapher app  on your Mac, create or open a graph. on your Mac, create or open a graph.
- Select an equation, then choose Equation > Integration. 
- Do any of the following: - Choose what to calculate: Click the Integrate pop-up menu, then choose an option. 
- Enter bounds: Enter values in the fields above and below the integral sign. 
- Set a bound to infinity: Click the pop-up menu next to the integral sign (3D graphs have pop-up menus for each integral sign). 
- Change the method used to calculate the value: Click the disclosure triangle next to Method, click the pop-up menu, then choose a method. You can change the default values for any of the methods. 
- Calculate the integral: Click Calculate. This highlights the equation’s area or surface on the graph. 
- Remove highlighting: Close the Integration window, then choose Equation > Remove Integrated Area.