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RPN family · Instruction manual

RPN Scientific 15

RPN Scientific 15 is a scientific calculator that works in reverse Polish notation (RPN): you key in the numbers first and then press the operation. A four-level stack holds your numbers, so there are no brackets and no equals key. It also has a root solver, numeric integration, statistics with line fitting, 20 storage registers and a keystroke programming language of up to 448 lines. This manual covers every key, with worked examples you can follow key by key.

Designed to feel familiar if you have used a HP-15C RPN scientific calculator.

  • 12 chapters
  • 87 topics
  • 130 worked examples

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RPN Scientific 15 in Trident Calculator

Contents

  1. 1Getting startedThe display, the f and g shift keys, your first RPN calculation, clearing and editing numbers, and typing with a computer keyboard.
  2. 2How RPN and the stack workWhat reverse Polish notation is, the four stack registers X, Y, Z and T, ENTER, stack lift, rolling, swapping and LAST X, with step-by-step examples.
  3. 3The keyboard, key by keyEvery key of RPN Scientific 15 with its plain, f (gold) and g (blue) function.
  4. 4Everyday calculationsArithmetic in RPN, keying in numbers and exponents, negative numbers, percentages and recalling the last X.
  5. 5FunctionsRoots, powers, logarithms, trigonometry in three angle units, hyperbolics, conversions, factorial, permutations, combinations, integer and fractional parts, rounding and random numbers.
  6. 6Display and angle modesFIX, SCI and ENG number formats, the angle units degrees, radians and gradians, showing all digits, USER mode, flags and the default settings.
  7. 7Storage registersThe 20 numbered registers and the I register, STO and RCL, register arithmetic, exchanging X with a register, indirect addressing and clearing memory.
  8. 8Statistics and regressionEnter one-variable and two-variable data with Σ+, then find the mean, standard deviation, linear regression line, estimates and correlation.
  9. 9SOLVE and integrationFind a root of any function you write as a program with SOLVE, and integrate a function between two limits with ∫xy.
  10. 10Keystroke programmingRecord keys as a program, label it, run it, use subroutines, tests, flags, loops with DSE and ISG, indirect addressing, editing and stepping.
  11. 11Error messagesEvery error the calculator can show, what it means and how to fix it.
  12. 12ReferenceReset and clear the calculator, number range and precision, display limits, and what is not included.

HP-15C is a trademark of HP Inc.. Trident Calculator is an independent product by South View Studios and is not affiliated with, sponsored by or endorsed by HP. The name is used only to describe the kind of calculator this model resembles; Trident's names, keys, display, fonts and software are its own clean-room design.