• +/- Switch Key - Yes

• Amortization - No

• Backspace Key - Yes

• Base Number Calculations - Yes

• Bond Calculations - No

Ergonomic Scientific Calculator performs 131 scientific and math functions and has a large, easy-to-read 10-digit, one-line, liquid crystal display (LCD). Ideal for students studying general math, pre-algebra, algebra, and trigonometry. Features one memory, five parenthesis levels, log and inverse, percent, complex numbers, standard logic, trigonometry functions, statistics functions (one variable, x mean standard deviation, factorial) and last-digit correction. Scientific calculator offers protective hardcover for protection from scratches. Runs on battery power. Automatically powers down when not in use.