Like new condition, working order Info Features statistics and advanced scientific functions, making it ideal for high school math and science Two-line calculator lets you easily review and edit previous entries Fraction and decimal conversions, plus change improper fractions to mixed numbers Built-in random number and random integer generator Offers trigonometry functions, negation key, fixed decimal capability, and One- and two-variable statistics Allows up to 23 levels of parentheses and up to 8 pending operations Includes error recovery capability, 5 memory variables, and scientific and engineering notation CR2025 battery offers up to 39 hours of use