Introducing the Hewlett Packard HP39gs Graphing Calculator, the perfect tool for business and office use. This handheld device boasts a regular key size and LCD display, making it easy to use and read. Its power source is battery-operated, making it convenient to take with you on the go. This graphing calculator is designed for professionals who need accurate calculations. It has a variety of features, including graphing, that will help you with your work. The HP39gs is an essential item for anyone in the business and industrial or office equipment industry.