This Texas Instruments TI-84 Plus CE Color Graphing Calculator is a powerful tool for students and professionals alike. With its black color and regular size, it is perfect for on-the-go calculations. The calculator runs on battery power and features a backlight display for easy use in low-light conditions. In addition to its basic functions, this calculator also has financial and scientific capabilities, making it a versatile tool for any mathematician. The calculus function, in particular, is highly useful for students and professionals who need to solve complex equations. This calculator is made by Texas Instruments, a trusted brand in the world of calculators.