Calculator With 50 Functions, Thomas Model 6024. Scientific calculator performs 99 percent of the lab?s routine and not-so-routine calculations. It does all arithmetic operations (add, subtract, multiply, divide). It performs over 50 functions, including science, math, common/hyperbolic trigonometric, logs/natural logs, powers, roots, reciprocals, factorials, percentages, hexadecimals, random number generation, and degree/decimal conversion. Statistical features include standard deviation, mean, sum of squares, sum of data, and much more. Three-key memory and "Forever Memory" store data when the unit is off. Automatic power-down function conserves battery life. Answers are shown on a 10-digit numerical, 2-digit exponent display. Handy pocket size makes it ideal to carry with you. Rugged case protects the unit. Raised keys make the calculator perfect for oversized fingers. Large, bright, vivid display is easy to read. Complete with instructions. Measures 3" width by 5" height by 1/2" thick. Weight is 1.5 ounces. Product Features Three-key memory Over 50 scientific functions Handy pocket size Raised keys make the calculator perfect for oversized fingers Measures 3" width by 5" height by 1/2" thick Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!