RPN vs 1secNote

RPN-38 CX is the first photo-realistic simulation of Hewlett-Packard's popular high-end programmable business calculator HP-38C for the iPhone. Produced from 1979 through 1983, it was the "Chive" member of the third-generation HP calculators known as the "Spice" series. While the simulator works like the original calculator, a number of carefully designed extensions make it a lot easier to use. RPN-38 CX is fully compatible with the HP-12C, except for calculations and programs involving Bonds and Depreciation. Features: • Photo-realistic look-and-feel • Programmable (99 steps, program memory not shared with register memory) • Subroutines, flags, loop control, extended conditional branching • Insert and delete steps with automatic address correction • 20 registers, "continuous", with unlimited store/recall arithmetic • Indirect register addressing • Register view • Program listing view • Program library view • Additional functions (nominal and effective interest rate) • Shortcuts for often-used key combinations • Store and retrieve any number of programs • Sharing: e-mail, AirDrop, Dropbox, copy, paste, print • 40 programs pre-installed Calculator functions: • Percentage (%, ∆%, %Total) • Simple and Compound Interest • Optional odd periods (like HP-12) • Nominal/Effective interest rate conversion • Amortization • Discounted Cash Flow Analysis • Net Present Value, Internal Rate of Return • Date and Calendar (actual or 30/360 day basis) • Statistics (mean, weighted mean, standard deviation) • Linear Regression • Additional functions not found on the HP-38: - Subroutines, flags, loop control, random number, Pi, Log, x² and more Details: cuveesoft.ch/rpn38

1secNote — Floating Camera Prompter & Live Markdown Note Check your script without looking away from the camera. Slide notes out from your Mac notch or menu bar in 1 second. Write with live Markdown, zero data loss, and unmatched aesthetic warmth. Whether you're recording video for social media, presenting on Zoom, taking quick meeting notes, or drafting long manuscripts, 1secNote keeps your eyes on your audience and your thoughts at your fingertips. WHY PEOPLE LOVE 1SECNOTE: • Floating Camera Prompter: Float notes seamlessly over your iPhone camera or Mac video calls. Speak naturally while looking directly into the lens. • Hands-Free Remote Control: Control teleprompter scrolling using Bluetooth buttons, AirPods, or Control Center. Pause to step line-by-line. • Seamless Live Markdown: Images, links, headings, bold, lists, and checklists format instantly. Raw syntax markers gracefully hide when you move your cursor away for clean, distraction-free reading. • All-New Interactive Widgets: Keep your chosen note or recent notes right on your Home Screen with rich image previews and instant one-tap capture. • Zero Data Loss & 7-Day History: Never lose a draft. Automatic micro-snapshots let you jump back to any revision from the last 7 days. • Mac Notch & Menubar Integration: Access your notes in a single click or glance right from the MacBook camera notch. CRAFTED FOR WRITING LOVERS: • Bespoke Typography: Enjoy writing with our custom-engineered pixel font, designed for razor-sharp readability at any size. • Modern & Vintage Displays: Switch freely between clean modern typography and cozy retro CRT displays (IBM Amber Plasma, Apple ][ Green, Commodore PET Blue, and e-ink). • Instant at Any Scale: From 10 notes to 10,000, 1secNote launches in 1 second with near-zero memory footprint. • Instant Spotlight Search: Find any note in 1 second straight from macOS Spotlight or iOS Search. • Complete Apple Ecosystem: Seamless iCloud sync across Mac, iPhone, iPad, and Apple Watch. No subscriptions. No account sign-ups. No trackers. Just the fastest, most satisfying note-taking companion on Apple devices.