NEWYES 991MS Engineering Scientific Calculator

🔴Come with a 6.5-inch writing tablet and a pen, which allows you to take notes while calculating. You can press the delete button to erase the notes, and also can lock it to keep them.
🟡Include fractions, statistics, complex number calculations, linear regression, base arithmetic, computer science, standard deviation, polar-rectangular conversions, etc..
🟢Adopt a premium plastic material key, which makes it more sensitive and more precise than a silicone key. Comfortable to touch.
⚫Solar panel + replaceable button battery for smooth trial and long battery life.
🟣NEWYES Calculator Notepad is foldable, closed to dust, easy to store, and easy to carry. Ideal for junior & high school students, college students, and professional researchers.

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[rockyplayz]

Just asking does this calculator works like any other scientific calculator and what are those arrow Cuz I want this but I wanna know what they do

[Timapro_m]

Oh finally I found which versions my newness calculator is, it's this one. can you please do a tutorial on how to solve a quadratic formula on this version please?