NEWYES Scientific Engineering Calculator with Writing Pad, Upgraded 991ES Plus 417 Functions, Solar Battery, for Students, Teachers, Engineer, Pen Included

Scientific calculator with notepad: comes with a 6.5 inch writing tablet and pen, which allows you to take notes while calculating. You can press the delete button to erase the notes, and also lock it to keep them. 417 Computer Functions: Includes fractions, statistics, complex calculations of numbers, linear regression, basic arithmetic, computer science, standard deviations, polar-rectangular conversions, etc. Foldable and portable: The notebook of the Newyes calculator can be folded and the LCD screen doubles up with a cover that closes to be stored neatly when you no longer need it, which fits well in your pocket. It is ideal for daily use of students, engineers, teachers and professional researchers (Please note that it may not applicable to most exams as the notebook is unremovable). Solar power: Solar panel + replaceable button cell for smooth testing and long battery life. Good quality: The Newyes scientific calculator is durable and has high-quality plastic keys that are more sensitive and accurate than silicone keys. Kind reminder: The pen that goes with the writing pad is hidden in the bottom corner of the frame.