Get the flexibility no other scientific calculator can offer! 35s Scientific Calculator lets you choose RPN or algebraic entry-system logic (no other scientific calculator offers both).It also features a large, two-line alphanumeric display and adjustable contrast, plus a robust library of built-in functions and constants.<br><br>- Choose RPN or algebraic entry-system logic<br>- Work efficiently with the keystroke programming<br>- Efficiently tackle heavy workloads with the 30KB memory and 800+ independent storage registers<br>- Store an equation, then use it again to solve any variable using HP Solve, or employ any of 100 built-in functions<br>- View entries, results, menus, and prompts with ease on the large, two-line display with adjustable contrast<br>- Simplify physics with the 42 built-in physical constants<br>- Get peace of mind with the one-year limited warranty plus HP Total Care advice and support This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-358-0099, indicating validated use in U.S. government and defense logistics supply chains.