Free42 VS Qalculate!

My go-to recommendation for an RPN calculator is Free42 (https://thomasokken.com/free42/). It's available for Android, IOS, Mac, Windows, Linux. So you can use the same calculator everywhere. It emulates the real HP-42S calculator very closely, so if you happen to own a real HP-42S, you can switch back and forth without friction. If you don't want to pay the extortion prices for a used HP-42S on eBay, you can pick... Source: 5 months ago

HP15C is amazing but so is the HP42 and HP35S, with the 42 in particular considered by some people to be the best scientific calculator ever made. I have an HP35S which is great. I also have a swiss micros DM42[1] which is an absolutely fantastic calculator based on the Free42[2] opensource emulator. It's much more powerful than the HP42 while remaining 100% compatible. The only downside is the keys are quite a... - Source: Hacker News / 6 months ago

$275, swissmicros, SwissMicros DM42 w/ case. This is the best, most accurate dedicated handheld calculator on the market hands down. Runs Free42, which is an enhanced HP 42S calculator simulator app written by Thomas Okken. Paid retail bc early models had issues and I’ve been a good little boy and deserve a treat. Market is $150-200. Source: about 1 year ago

But then I found it was hard going from RPN to the “normal” way my iPhone calculator works. Now I have the Free42 app. No more confusion. https://thomasokken.com/free42/. Source: over 1 year ago

Have you seen Free42, "...a re-implementation of the HP-42S Scientific Programmable Calculator and HP-82240 Printer?" [0] It is available for Android, iOS, Windows, macOS, and Linux. (At one point there was even a version available on Windows Phone 8.) Perhaps it checks your boxes of good RPN calculator, available on all platforms. I don't know how much an HP-42S feels like a 41C. In any event, thank you for ralc.... - Source: Hacker News / about 2 years ago

1) a scientific calculator with history and variables with a UI similar to https://sourceforge.net/projects/alt1-calculator/ that also can do units like https://qalculate.github.io/ 2) a tiny text chat direct message program that is similarly as easily accessible at Atl1 3) a minimalist dock of as many instances you would like similar to https://punklabs.com/rocketdock, and like where WIN opens the start menu, WIN... Source: 5 months ago

Qalculate is my go-to for cross platform calculator that is useful and is not limited to the most basic +-*/ operations. https://qalculate.github.io/. - Source: Hacker News / 8 months ago

If you want a self-hosted replacement for Keisan I strongly suggest looking at Qalculate! https://qalculate.github.io/. - Source: Hacker News / 8 months ago

I personally use Qalculate (https://qalculate.github.io/), specifically their CLI version for this purpose. I'm not sure how well it compares to GNU Units, but it works well enough for my needs; and it's fairly simple using English-like syntax. - Source: Hacker News / 9 months ago

On the terminal, I use `qalc`[1]. It's a nice natural language calculator that does arithmetic, solves quadratic equations/linear systems, does unit conversions and even a bit of calculus. Combine it with a cli graphing tool and you can do pretty cool things. Anything more complicated I'm probably ok with latency, so I open up wolframalpha and enter it there, again, in natural language. [1]... - Source: Hacker News / 9 months ago