HP 35s HP 35s scientific calculator - User Guide - Page 301
User Memory and the Stack, Managing Calculator Memory
UPC - 000000000000
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B User Memory and the Stack This appendix covers The allocation and requirements of user memory, How to reset the calculator without affecting memory, How to clear (purge) all of user memory and reset the system defaults, and Which operations affect stack lift. Managing Calculator Memory The HP 35s has 30KB of user memory available to you for any combination of stored data (variables, equations, or program lines). SOLVE, ∫ FN, and statistical calculations also require user memory. (The ∫ FN operation is particularly "expensive" to run.) All of your stored data is preserved until you explicitly clear it. The message means that there is currently not enough memory available for the operation you just attempted. You need to clear some (or all) of user memory. For instance, you can: Clear any or all equations (see "Editing and Clearing Equations" in chapter 6). Clear any or all programs (see "Clearing One or More Programs" in chapter 13). Clear all of user memory (press To see how much memory is available, press . The display shows the number of bytes available. User Memory and the Stack B-1