Search Results for: calc

Calc Quick Reference

Posted on 2015-05-22 by jcs

In a comment to one of my posts on calc, Sue D. Nymme (love that handle) mentioned that he was working on a quick reference for calc and kindly provided a sneak preview. Now he reports that he’s ready to … Continue reading →

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Calc Update

Posted on 2015-04-24 by jcs

I’ve written before that I’ve started learning Calc. That last post was after I’d worked through the introductory material (which is, itself, quite dense). I’ve now completed the first three sections of the tutorial covering Basic Tutorial (RPN, stack, algebraic … Continue reading →

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Discovering Calc

Posted on 2015-04-06 by jcs

As some of you know, learning more about about calc has been on my TODO list for sometime (that’s literally true—it’s in my agenda). I last wrote about it just last week. I’ve finally stopped procrastinating and starting learning calc. … Continue reading →

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Calculating My Average Post Size

Posted on 2014-05-29 by jcs

Most of my posts are pretty short: maybe 250 words or so. The other day, I began to wonder how long the average post is so I wrote a few lines of Elisp code and just executed it in the … Continue reading →

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Back of the Envelope Calculations

Posted on 2013-04-13 by jcs

I love this. I’m a big believer in the utility of making back of the envelope calculations. It’s amazing how often it can reveal poor assumptions or that someone is trying to peddle malarkey. The technique is also extremely powerful. … Continue reading →

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Calculating the Fibonacci Numbers

Posted on 2011-05-13 by jcs

If, like me, you’re fascinated by the Fibonacci numbers you should take a look at Robin Houston’s The Worst Algorithm in the World post over at the Bosker Blog. Houston lists and analyzes the three main ways of calculating fib(n): … Continue reading →

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Branch Prediction

Posted on 2024-09-10 by jcs

Here’s a very nice discussion of branch prediction from a Stack Overflow question. We graybeards and, really, just about everyone else like to pretend that all processors are still like the PDP-11. They were easy to understand and their semantics … Continue reading →

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Converting Between Miles and Kilometers

Posted on 2024-09-07 by jcs

Peteris Krumins has a nice post on using Fibonacci numbers to covert between miles and kilometers. The TL;DR is that if you take any two consecutive Fibonacci numbers, X and Y, there will be approximately Y kilometers in X miles … Continue reading →

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Favorite Emacs Utilities

Posted on 2024-06-30 by jcs

Over at the Emacs subreddit, Phovox—a 30-year Emacs user—asks what your favorite Emacs utilities are. He’s started using Doom Emacs and has discovered, through Doom, utilities that he didn’t know about. So he’s wondering what else he may have missed … Continue reading →

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PSA: Some Upcoming Casual Name Changes

Posted on 2024-06-14 by jcs

If you’ve been around Irreal for as little as a few months, you know that I’m a fan of Charles Choi’s “Casual” utilities. They’re all basically the same. They add a transient menu to Emacs utilities such as Calc, Isearch, … Continue reading →

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