![]() I finally break down and order some calculators. I still mostly am using my phone as a calculator, far more than is reasonable. I’m now disconnected from all of my old tools due to corporate policy. 2 I also become enamored with the ability to easily access to multiple memories.Ī few years later, I start a new job as a (mechanical) design engineer. But I start to see the usefulness of the stack and stick with it for a while, then I made the move permanent. I didn’t know what this was so I tried it out. Sometime in 2009 there was a release note for PCalc where ‘Optional HP48-style RPN behavior’ was added. I slowly start using it more and realize it’s nice not to have to fire up a program for a quick calculation. I think I read a recommendation on Daring Fireball or And now it’s all this for PCalc and I purchase it for my phone. With the arrival of smart phones, I find myself using my phone as a calculator periodically. All of my math is in python or Mathematica, or honestly, by hand. I’ve been to graduate school, never having bought another calculator, and done a post doc as well. That was all the exposure I’d had to HP calculators (and RPN) for the first 30 years of my life.įast forward to the late 2000’s. I remember one of my class mates had a weird-ass HP graphing calculator that I could never figure out how to work. I think it served primarily to hold books open to the right pages. ![]() By the time I got to college, it was mostly useless, particularly in physics courses. I went to high school in the mid ‘90’s and got a TI-81 (I think?) at some point in early high school. I’ve worked as a plasma physicist, a (mechanical) design engineer, and now as something in between 1. So first, why the heck do I even need a calculator? How does someone my age end up using a calculator when iPhones, Wolfram|Alpha, and Excel exist? And why would I spend a decent amount of cash on a physical calculator based on a 30-year old design and not buy a much cheaper and more capable modern design? Background It is more of a log of a journey than a review. This will be a long and rambling post… you have been warned. The Swiss Micros DM42 is a semi-faithful clone of the HP-42S, an RPN calculator HP sold from 1987-1995. I’ve had my Swiss Micros DM42 for about a year now and I thought I’d write some thoughts about it.
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