What kind of calculator do you use in Emacs?
Calc is a calculator with many advanced features, once described as the poor man’s Mathematica. It has been part of GNU Emacs since version 22. If all you need is a simple calculation and don’t want to deal with RPN mode, you can use Calc in algebraic mode.
How can I use CalC in algebraic mode?
If all you need is a simple calculation and don’t want to deal with RPN mode, you can use Calc in algebraic mode. To do so, just run Calc with M-x calc , and then hit apostrophe (’) – now you can type in your formula normally and hit enter for the result.
How is days of presence calculated in emacswiki?
The implemented function ‘days-of-presence’ can be used to calculate the number of days between two days, and optionally a number of periods of absence to exclude, as shown in the examples below.
Where can I find the reference for calc?
You can read the reference from start to finish if you want to learn every aspect of Calc. Or, you can look in the table of contents or the Concept Index to find the parts of the manual that discuss the things you need to know. Every Calc keyboard command is listed in the Calc Summary, and also in the Key Index.
How to connect to a running instance of Emacs?
Simply replace every place you’d run emacs with this command instead. The emacsclient program will connect to a running instance of Emacs if it exists. -c tells Emacs to open the file in a new frame, which is optional. Specifying -a=”” tells emacsclient to start an instance of emacs if it cannot find one already running.
What does emacsclient do as a default editor?
EmacsClient allows one to open a file for editing in an already running Emacs. Because it doesn’t start a new Emacs instance at each invocation, you can set up EmacsClient as the default editor, e.g. in the environment variable EDITOR or VISUAL.
What does it mean to kill emacs function?
‘kill-emacs-query-functions’ allows one to call functions that query the user about killing emacs, with the potential for aborting the quit. i have a simple check in my .emacs that works fine for a standalone emacs process but doesn’t get called when exiting an emacs client.