gramian

#!/bin/bash

# project: build_oct
# version: 1.12 (2023-01-01)
# authors: C. Himpe (0000-0003-2194-6754), M. Koehler (0000-0003-2338-9904)
# license: BSD-2-Clause License (opensource.org/licenses/BSD-2-Clause)
# summary: Build Octave and numerical dependencies from source (in Ubuntu 20.04 with GCC >= 10.3).

# requires hardware: either X86-64 with AVX2 or ARM64 with NEON.
# requires software packages: octave libpcre2-dev libreadline-dev libgmp3-dev libmpfr-dev libfreetype6-dev libgl2ps-dev libfontconfig1-dev libglu1-mesa-dev

gramian

ArcadeDB SQL Cheat Sheet

CRUD

INSERT INTO <type>|BUCKET:<bucket>|<index> [(<field>[,]*) VALUES (<expression>[,]*)[,]*]|
$~~~~~~~~~~~~~~~~~~~$[SET <field> = <expression>|<command>[,]*]|[CONTENT {<json>}] [RETURN <expression>] [FROM <query>]

SELECT [<projections>] [FROM <target> [LET <assignment>*]] [WHERE <condition>*] [GROUP BY <field>*] [ORDER BY <fields>* [ASC|DESC]*]
$~~~~~~~~~~~$[UNWIND *] [SKIP ] [LIMIT ] [TIMEOUT []]

gramian

#!/bin/sh

echo $((`cat /sys/class/thermal/thermal_zone0/temp` / 1000))

gramian

%% Math %%

si = @(x) sin(x) ./ (x + (x==0)); % cardinal sine without pi multiplied argument

hsin = @(x) 0.5 * (1.0 - cos(x)); % haversed sine

hcos = @(x) 0.5 * (1.0 + cos(x)); % haversed cosine

sigm = @(x,k) 0.5 * tanh(0.5 * k * x) + 0.5; % sigmoid function to (exp(-kx)+1)^-1

gramian

## Chicken Scheme Dockerfile
# Build: docker build -t chicken:latest .
# Usage: docker run -it chicken
FROM alpine:latest
RUN apk add --no-cache chicken
RUN chicken-install linenoise
# RUN chicken-install other-egg
RUN adduser -D -g '' chicken
USER chicken
WORKDIR /home/chicken

gramian

#!/bin/bash

# Usage: ./init.sh localhost 2480 mydb root password myscript.sql

## Assign input commandline arguments

HOST=$1
PORT=$2
NAME=$3
USER=$4

gramian

function flamegraph(profdata)
### project: flamegraph
### authors: Christian Himpe (0000-0003-2194-6754)
### version: 0.3 (2021-02-06)
### license: BSD-2-Clause (opensource.org/licenses/BSD-2-Clause)
### summary: Flame graph visualization for Octave's profiler output.
#
# USAGE:
#
#  profile on;

gramian

function m = antijet(n)
% antijet colormap
% by Christian Himpe 2014
% released under BSD 2-Clause License ( opensource.org/licenses/BSD-2-Clause )

    if(nargin<1 || isempty(n)), n = 256; end;
    L = linspace(0,1,n);

    R = -0.5*sin( L*(1.37*pi)+0.13*pi )+0.5;
    G = -0.4*cos( L*(1.5*pi) )+0.4;

gramian

function v = versioninfo()
%%% project: versioninfo (clone of Julia's versioninfo for Octave and MATLAB)
%%% version: 1.0 ( 2019-02-07 )
%%% authors: C. Himpe ( 0000-0003-2194-6754 )
%%% license: BSD 2-Clause License ( opensource.org/licenses/BSD-2-Clause )
%%% summary: Collect compute environment and version information on Linux

    % Interpreter name
    if(exist('OCTAVE_VERSION','builtin'))
        v.name = 'OCTAVE';

gramian

HISTIGNORE='git *'

alias cd..='cd ..'
alias uncommit='git reset --soft HEAD~'
alias forcepull='git fetch --all && git reset --hard origin/master'
alias oct='octave-cli'
alias mem='/usr/bin/time -f "%M KB"'
alias nano='nano -c -S'
alias ls='ls -la'