Amazon Basics 991ES Plus Scientific Calculator | 417 Functions | Four-Line Natural Display | Dual Power Solar & Battery | Engineering & Student Calculator | Black REFURBISHED AI Vision & HDMI CEC

AI Vision & HDMI CEC Profile Sync

line-by-line scrolling

3 Hyperesponse Buttons

Connectivity: Display Port

SPLASHPROOF: IPX5-certified design keeps the wireless music and calls playing through sunshine and rain

Amazon Basics 991ES Plus Scientific Calculator | 417 Functions | Four-Line Natural Display | Dual Power Solar & Battery | Engineering & Student Calculator | Black REFURBISHED AI Vision & HDMI CECFeatures 417 Advanced Scientific Functions: Equipped with 417 built in calculation functions including trigonometry, logarithms, exponentials, calculus, statistics, algebra, complex numbers, matrices, and vectorsideal for students, engineers, and professionals. Large Four Line Natural Text Display: Features a large four line screen with natural textbook style display, allowing formulas and results to appear exactly as written, making complex