Symbolab Reviews

Free42 Reviews

Symbolab mentions (10)

• Which one is wrong and why?

  Thank you! I was confused because the solution to the problem used the first method, but on symbolab.com they used the second one. Source: about 1 year ago

• Interesting theory of Collatz cycles - not a proof!

  I hope that was clear. If you doubt my approach to limits, you can try it on symbolab.com or another online calculator. Source: about 1 year ago

• Calculus websites

  Symbolab.com does something similar but also requires a membership. Source: over 1 year ago

• Did anybody use a TI-84 Plus Graphing Calculator for Straighterline Calc?

  That being said, if I had to do it all again, I would save myself the hassle and just use symbolab.com for the calculator for straighterline. I ended up using that website quite a bit even with the Nspire, fwiw. Symbolab will solve 90%+ of all the problems straighterline will throw your way. Source: almost 2 years ago

• Please

  Some kinda good websites I used to get through math was symbolab.com and mathway.com. Source: about 2 years ago

Free42 mentions (6)

• Ti84 Plus CE glitch

  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: 6 months ago

• Casio fx-CG50 calculator comes with Python built-in

  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 / 8 months ago

• 300 dollars?!? 💀 I can buy a Xbox Series S with that

  $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

• Iconic calculator. I am still trying to get my head round RPN but it's such a lovely device to play with!

  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

• Show HN: All desktop calculators are wrong, so I had to build my own

  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 / over 2 years ago