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HP 35S

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The ultimate scientific calculator
Get professional performance from the ultimate RPN scientific programmable calculator. Switch between RPN* and algebraic entry-system logic at any time. The HP 35s features a two-line display, and the powerful HP Solve application.

Professionals and college students have the flexibility no other scientific calculator can offer with the choice of RPN* or algebraic entry-system logic. The HP 35s is completely programmable and with 31KB of memory, plus the HP solve application.


  • Work more efficiently with keystroke programming Solve or use 100 built-in functions
  • Store an equation then use again to solve any variable using HP
  • Large 2-line display with adjustable contrast to easily view entries, results, menus and prompts
  • Use strong statistics functions for single and two-variable statistics, linear regression and more
  • Handle the heaviest workloads with ease with 31 KB of memory plus 800+ independent storage registers
  • Power to calculate inverse functions, cube root, logarithms, exponents, factorials and more
  • Take advantage of a powerful fraction mode plus fraction-to-decimal conversion
  • Suitable for middle and high school

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