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Hewlett Packard HP-15C Collector's Edition RPN Scientific Calculator

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Hewlett Packard HP-15C Collector's Edition RPN Scientific Calculator Image - Click to enlarge

After a 12-year hiatus, HP is reintroducing the popular HP 15c Scientific Calculator in a Collector’s Edition. This HP classic features a unique “Collector’s Edition” script, making it a great gift for collectors and engineers alike. The HP 15c offers users a high-end and portable, scientific calculator with programmable functions and built-in support for complex numbers, matrix math, numerical integration, and root solving, which makes this device one of the most capable calculators HP has ever made.

The new HP 15c maintains the same intelligent design as the original but touts up to 100x faster processing speed. Its compact size and lightweight metal frame allows users to conveniently carry the HP 15c from meeting to meeting. Unlike other scientific calculators, the HP 15c also offers an intuitive, horizontal interface, just like the original.

Firmware Patch Option: Calculator firmware will be patched to correct the DEC bug in HP-16C mode and increase key debouncing time to 100ms. Calculator packaging will be openned to allow for the firmware update. WARNING: Neither HP-16C mode nor firmware updates are officially supported by the manufacturer and may void the warranty. This option is for advanced users who know what they want.


  • Programming capabilities include: conditional and unconditional branching, subroutines, flags, and editing. Plus, users can program up to 672 steps of calculations (increased from 448). The HP 15c also offers direct and indirect storage in up to 99 registers (increased from 67). This handy calculator operates using Reverse Polish Notation (RPN), reducing the number of keystrokes to complete calculations.
  • Best used for: Engineering, Science, Mathematics, Physics.
  • Built-in functions: Over 130.
  • Advanced functions: Trigonometric, exponential, basic statistics, complex number calculations, matrix operations, integration, keystroke programming.
  • Power supply: 2x CR2032 batteries.
  • Auto Power off: 5 minutes.
  • Display: 1 line x 10 characters.
  • Display type: LCD, 7-segment.

Test Overlay for HP-16C Mode in HP-15C Collector's Edition
Test Overlay for HP-16C Mode in HP-15C Collector's Edition

Programming Cable for HP-15C Collector's Edition
Programming Cable for HP-15C Collector's Edition

Firmware Update Service for HP-15C Collector's Edition Calculator


Usually ships in 2-3 business days

HP-15C $169.95Sale: $154.95
Firmware Patch: 
Find it new or used for less!

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SwissMicros DM15L RPN Calculator - HP-15C Clone

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