Search Results for: calc

A Flush-lines Example

Posted on 2024-06-03 by jcs

I’m fond of telling stories about folks using Emacs to solve difficult—or at least complicated—problems but Emacs is probably used more often to solve simple, one-off problems. These problems typically don’t require anything fancier than, maybe, keyboard macros. Mario Jason … Continue reading →

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Casual Dired

Posted on 2024-05-09 by jcs

Charles Choi is on a roll. He discovered the trick of improving the interfaces to various Emacs functionalities by capturing them in a transient menu. I’ve already written about his considerable contributions to the usability of Calc: my last post … Continue reading →

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Symbolic Math With Casual

Posted on 2024-05-02 by jcs

One of the least appreciated features of Emacs is Calc. At it’s most basic it provides an RPN calculator much like a traditional HP scientific calculator. It’s reasonably easy to learn this functionality but Calc offers much, much more. It … Continue reading →

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Custom Functions In Org Tables

Posted on 2024-03-01 by jcs

Most Org users know that there are built in functions that can do things like sum some or all of the entries in a row or column of a table. The set of functions is actually much richer than simply … Continue reading →

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Query Replace Regexp

Posted on 2024-01-11 by jcs

Susam Pal has a nice reminder on using query-replace-regexp. Most Emacs users know about the command and its binding Ctrl+Meta+% but Pal’s post mentions some less known features that can be very useful. The first—and simplest—is using \& in the … Continue reading →

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Editing LaTeX With Emacs

Posted on 2023-11-20 by jcs

Michael Neuper has a very nice article on Efficient LaTeX Editing With Emacs. As far as I know, there’s only two reasonable ways of doing that: Org Mode AUCTeX Org mode is good for what might be called “light weight” … Continue reading →

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Converting an Excel Spreadsheet to an Org Table

Posted on 2023-05-10 by jcs

I no longer use spreadsheets and haven’t for a long time. I don’t think there are any spreadsheet instances on any of my computers and if there are, they are relics from the mists of time. Any spreadsheet operations that … Continue reading →

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Improving IELM

Posted on 2023-04-10 by jcs

If you’ve been around Emacs long enough to learn some Elisp, you probably know about IELM, the Inferior Emacs Lisp Mode. It provides an Elisp REPL that is often easier to use than evaluating separate Elisp statements. It’s one of … Continue reading →

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Beating The House At Roulette

Posted on 2023-04-09 by jcs

This post isn’t strictly within the purview of Irreal but I think it will appeal to the nerd in all of us. Most of you know that a perfect roulette wheel produces completely random results but, of course, no wheel … Continue reading →

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Tracking Tax Documents With Org Mode

Posted on 2023-04-01 by jcs

As I’ve written many times, I use Org mode to organize a ridiculous percentage of my life and can’t imagine living without it. It’s just so powerful that I keep finding new uses for it. The problem is, though, it’s … Continue reading →

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