#Fullmoon, say #Meton, the ancient Greek, and his lunar phase #calculator.
https://www.thomasweibel.ch/?post=rechner-aus-dem-drucker
#astronomy #mathematics #mechanics #history #moon #moonphase #antiquity #archaeology #3dprint #diy #sciencehistory #digitalhumanities
How HP Calculators Communicate Over Infrared https://hackaday.com/2026/01/27/how-hp-calculators-communicate-over-infrared/
#MiscHacks #Calculator #Hewlettpackard #HP #Infrared #ScientificCalculator #Z80
Building a #crt #calculator the hard way
https://www.youtube.com/watch?v=pjzK-Lppa1c
🧮 The Texas Instruments CC-40 invades Gopherspace (plus TI-74 BASICALC)
http://oldvcr.blogspot.com/2025/12/the-texas-instruments-cc-40-invades.html
Một công cụ tính phạt giao thông Đức miễn phí, đơn giản và bảo mật: tính tiền phạt, điểm lỗi và khả năng bị cấm lái xe. Có thông tin rõ ràng, dễ hiểu kèm hướng dẫn khiếu nại và phân tích sơ bộ bằng AI. Không lưu dữ liệu, xử lý riêng biệt bảo vệ quyền riêng tư. Giao diện gọn nhẹ, minh bạch. #TrafficFine #Germany #Calculator #Punishment #Law #BuGiaothong #Nhatban #Congcu #Baomat #Luatgiao thong
https://www.reddit.com/r/SaaS/comments/1qmwee1/simple_online_calculator_for_german_traffic/
#Calculator and #Notepad are loading fine for me lol
Ook kerken hebben een CO2-voetafdruk. Kerkgebouwen gebruiken vaak veel energie, soms wordt er gevlogen en worden er maaltijden gedeeld. Ben jij benieuwd hoe groot de voetafdruk van jouw kerk is?
Kijk op de website van onze speciale calculator voor kerken: https://360carbon.org/nl-nl
Vragen? Neem dan contact met ons op.
This is my real everyday desk calculator. Love the satisfying sound of the keys when you use it.
It’s helping me cope with ‘January Accounting Hell’
Show HN: I quit coding years ago. AI brought me back
https://calquio.com
#ycombinator #calculator #online_calculator #free_calculator #finance_calculator #BMI_calculator #compound_interest #unit_converter
Graphing Calculator Gets USB-C Upgrade https://hackaday.com/2026/01/07/graphing-calculator-gets-usb-c-upgrade/
#PeripheralsHacks #Calculator #Hotair #HP #Hpprime #MicroUSB #Port #Solder #Upgrade #USBC #Usbotg
Tự tạo máy tính tài chính hỗ trợ đa công cụ & độ lệch chuẩn, không quảng cáo/yêu cầu đăng ký. Những tính năng hữu ích mà Excel không có! 💼📊
#Finance #Calculator #Investing #StandardDeviation #SideProject #TàiChính #MáyTính #ĐầuTư #ĐộLệchChuẩn #DựÁnCáNhân
A dive down the history of programmer's calculators of the 1970s and 1980s. These devices are calculators for programmers distinct from programmable calculators.
https://innovintageblog.wordpress.com/2026/01/05/programmers-calculators
Părintele Selafiil, Scrisori din Siberia: Sunt vremurile de sfârşit! Pacea în lume va fi, curând, un lucru rar Să ştii că grozăvia cea mare va fi un război între toate marile puteri ale lumii, şi va fi atâta foc şi prăpăd peste toată omenirea, că mulţi vor vrea să se fi aflat în pământ, în morminte. Mulţi vor pieri… 👉 https://c.aparatorul.md/q7sfo 👈 #îngeraşi #Adevărul #AdevăruluiHristos #Bunelul #Calculator #delăsarea #Desfrânarea #Duhovnici #Dumnezeu #eresul #l...
https://c.aparatorul.md/q7sfo
#Development #Resources
Library of Time · The countless ways cultures display time https://ilo.im/169dj1
_____
#Calculator #Calendars #Clocks #Time #Design #UiDesign #WebDesign #WebDev #Frontend #Backend
The Rise of Fake Casio Scientific Calculators https://hackaday.com/2025/12/29/the-rise-of-fake-casio-scientific-calculators/
#Reviews #Calculator #Casiocalculator #Fake
The original HP-15C from 1982 was my first programmable #RPN #calculator. I bought mine in 1985. By then, I was an upper-level #EE student, with a few years of #programming experience in a handful of languages from different paradigms, including assembly. Yet, I found keystroke programming on the HP-15C to be a challenge.
This little machine could store only 500 keystrokes in its memory, and the instructions were shown as numeric codes. It was rather like programming on the ET-3400 or the KIM-1—it was a right mess. Still, the HP-15C was the best engineer's pocket computer I could afford then, and I thoroughly enjoyed learning to use it well.
Not long after, when I entered the industry, EEs were all using MATLAB on Sun workstations, and our RPN calculators mostly sat on the desk. That was the beginning of the end for calculators. Yet, to this day, the HP-15C remains my all-time favourite RPN calculator.
PS—Those who are curious about programming the various HP RPN calculators may read my article on the subject.
https://amenzwa.github.io/stem/ComputingHistory/HowRPNCalculatorsWork/
