About RPNscfi
Ease of use and beauty in mind, designed for every family member (parents, students) and professionals (finance, engineering, science) by combining comprehensive set of household financial calculations (loans, mortgages,...
Ease of use and beauty in mind, designed for every family member (parents, students) and professionals (finance, engineering, science) by combining comprehensive set of household financial calculations (loans, mortgages, "what-if" analyses), statistical calculations and scientific/engineering functions into a single package.
RPNscfi is a 15-digit RPN calculator with unlimited stack debt. It supports numbers greater than or equal to |2^-1022| (~10^-308), and less than |2^+1024| (~10^+308).
■ Tap “OPTIONS” and tap [Help] key to view User’s Manual
• Jump to Section 1.3 for a quick tour and continue reading Section 1.4.
• If you are not familiar with RPN calculator, please refer to Section 2.6.
■ VoiceOver enabled universal app
■ Financial Calculator
• Mortgage, Loan calculations
• Amortization schedule (copy or e-mail, CSV or text formats; select and paste)
• Savings plan, Pension fund calculations
• Savings account, Appreciation, Depreciation calculations
• Lease with/without residual value calculations
• Interest rate conversions (e.g., dividend to annual interest rate and vice versa)
• Calendar functions with dynamically localized date output
• Help you to understand and manage your budget with “what-if” analyses
■ Statistics Calculator
• Mean (μ), population (σ) and sample (s) standard deviations, weighted mean (μ.w)
• Normal, log-normal, log-log least-square regression analyses (tested with a million data samples)
• Equation output, x and y estimators, r: Pearson product-moment correlation coefficient
• Powerful edit feature: edit any record, export/import your data between IOS devices and desktop computers
• Test generator to get acquainted with statistics calculator
• Regression graph feature: will guide you to visually navigate your datasets
■ Scientific Calculator
• Common trigonometric, hyperbolic, logarithmic and exponentiation functions (base e, 10, and 2)
• Arbitrary rounding, mod operation, various ceil and floor functions, percentage functions
• Factorial function, binomial coefficient and greatest common divisor calculations
■ Unit System Conversion Calculator
• Simple yet useful to address daily metric to/from imperial conversion needs.
• 4 length, 5 area, 2 weight, 2 volume, 1+ temperature cross units conversions, plus little more.
■ Built-in PDF User’s Manual
• E-mail or print User’s Manual
• While reading, rotate device to exercise examples, and rotate again to resume reading
• All financial features are explained and demonstrated with annotated examples
■ Additional Features
• Easy-to-review on-demand non-intrusive tape
• Built in tape history browser and editor
• Gives you true record of all calculations
• Features copy, selective copy, and e-mail.
■ Easy configuration via Gestures
• US & EU number formats
• 5 number notations: DEC, FIN, ENG, SCI, UNF
• 2 trigonometric angle modes: DEG, RAD
• Fixed-point (FIN) and fixed-digit (ENG) number notations
• 4 keypad themes, 3 keypad fonts, 3 display fonts, 3 tape fonts, and 4 display & tape font colors
Jan 14, 2022
Version 3.20
Minor enhancement:
+ [logΓx] key replaced with [lnΓx] key, returning natural logarithm of Γ(x).
+ A feature that allowed User's Manual view switching back and forth to calculator on device orientation has been removed.
+ [atan2] key is added to Financial calculator keypad. Press [f][atan2] without any entry to learn syntax.
Previous Versions
Here you can find the changelog of RPNscfi since it was posted on our website on 2016-10-15 04:00:10.
The latest version is 3.20 and it was updated on 2024-04-22 18:15:09. See below the changes in each version.
RPNscfi version 3.20
Updated At: 2022-01-14
Changes: Jan 14, 2022 Version 3.20
Minor enhancement:
+ [logΓx] key replaced with [lnΓx] key, returning natural logarithm of Γ(x).
+ A feature that allowed User's Manual view switching back and forth to calculator on device orientation has been removed.
+ [atan2] key is added to Financial calculator keypad. Press [f][atan2] without any entry to learn syntax.
RPNscfi version 3.12
Updated At: 2021-10-05
Changes: Oct 5, 2021 Version 3.12
iOS light / dark mode improvements.
+ User's manual Section "2.1.4 Options Keypad" updated for keypad theme.
RPNscfi version 3.11
Updated At: 2021-10-01
Changes: Oct 1, 2021 Version 3.11
Dark/light mode color changes.
RPNscfi version 3.1
Updated At: 2021-09-20
Changes: Sep 20, 2021 Version 3.1
Compatibility and enhancements release.
Now supports iOS light/dark mode transitions (see Section 2.1.4 "Options Keypad").
BUGs resolved: iPad devices disabled keypad key-clicks are reenabled.
RPNscfi version 3.0
Updated At: 2021-07-01
Changes: Jul 1, 2021 Version 3.0
iOS 13 and iOS 14 compatibility release.
Know Bug (iOS 13 and above):
On iPad devices calculator keypad key-clicks are disabled due to iOS shortcuts-bar (above the keyboard) overlapping with calculator keypad view. Even though it was possible to enable key-clicks by managing this shortcuts-bar in standalone mode, it was impacting split-view user layouts as iOS shortcuts bar would cover both apps. No solution is available to hide this bar at this time.
RPNscfi version 2.95
Updated At: 2018-09-17
Changes: 17 Sep 2018 Version 2.95
Enhancements:
+ Minor screen adjustments for 2018 iPhone models.
BUG Fixes:
+ binom(x,y) and lnbinom(x,y) (x > y) requirement dropped.
Document Updates:
+ None.
RPNscfi version 2.95
Updated At: 2018-09-17
Changes: Sep 17, 2018 Version 2.95
Enhancements:
+ Minor screen adjustments for 2018 iPhone models.
BUG Fixes:
+ binom(x,y) and lnbinom(x,y) (x > y) requirement dropped.
Document Updates:
+ None.
RPNscfi version 2.37
Updated At: 2012-09-28
RPNscfi version 2.95
Updated At: 1970-01-01
Changes: 2018年9月17日 Version 2.95
Enhancements:
+ Minor screen adjustments for 2018 iPhone models.
BUG Fixes:
+ binom(x,y) and lnbinom(x,y) (x > y) requirement dropped.
Document Updates:
+ None.
