miguelff

Octave CheatSheet

GNU Octave is a high-level interpreted language, primarily intended for numerical computations.
(via GNU Octave)

Basics

• not equal ~=
• logical AND &&

miguelff

package main

// The aim of this example is to illustrate backpressure using golang channels and go routines.
//
// This is the basis for a simple data processing service which could either be reading from
// some internal queue or a socket of some sort.

import (
	"fmt"
	"math/rand"

miguelff

select
    concat(
        'create table ',
        table_name,
        '(',
        string_agg(
                concat(
                        column_name,
                        ' ',
                        CASE when is_nullable = 'YES' THEN 'Nullable(' END,

miguelff

Macbook Arch Guide

• Installation
• General Setup
• System Time
• Display
• Keyboard
• Touchpad
• Sound
• Bluetooth

miguelff

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

miguelff

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

miguelff

diff --git a/main.go b/main.go
index fdb5ccf..8a68f58 100644
--- a/main.go
+++ b/main.go
@@ -34,9 +34,57 @@ type mysqlConnKey struct {
 	username, pass, session string
 }
 
+type request struct {
+	query   string

miguelff

Taxes in asturias
Gross: 420000, Net: 220831 (18402 / mo), Tax: 199168 - 47.42 percent goes to taxes
Gross: 245200, Net: 135179 (11264 / mo), Tax: 110020 - 44.87 percent goes to taxes
Gross: 180000, Net: 103231 (8602 / mo), Tax: 76768 - 42.65 percent goes to taxes
Gross: 157700, Net: 92131 (7677 / mo), Tax: 65568 - 41.58 percent goes to taxes
Gross: 113950, Net: 70256 (5854 / mo), Tax: 43693 - 38.34 percent goes to taxes
Gross: 92075, Net: 59318 (4943 / mo), Tax: 32756 - 35.58 percent goes to taxes
Gross: 70200, Net: 47391 (3949 / mo), Tax: 22808 - 32.49 percent goes to taxes

Taxes in bizkaia