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Emacs Calc Tutorial

Getting help

h h See all the help at once.

Working with the stack

. Denotes the top of the stack

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#!/bin/bash
# To automatically start Emacs in daemon mode if there's no daemon already
# running, set:
#
#     export ALTERNATE_EDITOR=""
#
# Automatically choose how to open Emacs:
# 1. If running in interactive terminal use the same terminal.
# 2. If there's a frame created, use that frame.
# 3. Otherwise create a new frame and use it. 

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Archlinux setup guide

This guide is based on the official Archlinux [Installation Guide][1], [Beginners' Guide][2] and my personal experience.

Partition layout

SDD partitions	fs	size	mountpoint
/dev/nvme0n1p1	FAT	512M	-
/dev/nvme0n1p2	LUKS	MAX	-

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const EMPTY = null;
console.clear();
var naturals$ = Naturals()
var firstFive$ = take(5, naturals$)
applyEach(
  n => console.log(n),
  firstFive$
)

// 1 2 3 4 5

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var ones$ = Repeat(1);
var naturals$ = foldPast(sum, 0, ones$)
applyEach(
  n => console.log(n),
  naturals$
)

// 1 2 3 4 5 ...

function sum(x, y) {

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function Y(f) {
  return (function(g) {
    return g(g);
  })(
    function(g) {
      return (f)(function(arg) {
        return (g(g))(arg);
      });
    }
  );

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#!/bin/bash

# Build latest version of Emacs, version management with stow
# OS: Ubuntu 14.04 LTS
# version: 24.5
# Toolkit: lucid

# Warning, use updated version of this script in: https://github.com/favadi/build-emacs

set -e

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function getFourInARow(numbers) {
  var xs = partitionEvery(4, numbers);
  var transducer = compose(
    mapping(calcProduct),
    updateIn("maxProduct", max2),
    updateIn("avg", avg2(xs.length))
  );
  var result = xs.reduce(transducer(id), { maxProduct: 0, avg: 0 });
  return result.maxProduct - result.avg
}

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function namesSorter (departmentsArray) {
  return sort(
    concat(departmentsArray),
    byLengthAndAlphabetically
  );
}

function concat(xs) { return xs.reduce(concat2, []); }

function concat2(a, b) { return a.concat(b); }

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(save-window-excursion
    (package-refresh-contents)
    (list-packages :no-fetch)
    (package-menu-mark-upgrades)
    (package-menu-execute :no-query))