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{-# OPTIONS_GHC -Wall #-} -- {-# LANGUAGE FlexibleContexts #-} -- The `(..)` syntax represents all of the constructors for the data type. [1] -- Without that export, we can pattern-match in BinaryDiagnostic.hs because we -- run into a "Not in scope: data

Day 8 - Advent of Code 2021.

Day 7 - Advent of Code 2021.

Day 6 - Advent of Code 2021.

Problem Statement Part One You come across a field of hydrothermal vents on the ocean floor!

Day 4 - Advent of Code 2021.

Day 3 - Advent of Code 2021.

Day 2 - Advent of Code 2021.

This page contains remarks on Haskell that I encountered when working with source files that span multiple AoC 2021 problems. and have Haskell solutions.

#22 Names scores - Project Euler. projecteuler.net .

Day 1 - Advent of Code 2021: Sonar Sweep.

Problem Statement \(n!

Problem Statement You are given the following information, but you may prefer to do some research for yourself: 1 Jan 1900 was a Monday.

How Beliefs Become Identities Didn’t have priors on this.

How to Be Wrong found that experts were barely able to forecast better than random chance.

Coping with Reality This chapter felt a bit vacuous with its use of anecdotes to advance points.

Signs of a Scout These Don’t Make You a Scout Feeling objective.

Two Types of Thinking Soldier Mindset Reasoning is like defensive combat.

Pre-read thoughts.

Techno-utopianism claimed that the old ways of doing things are broken, and technology is the panacea: ending poverty, fixing racism, equalizing opportunity, strengthening democracy; toppling authoritarian regimes.

Problem Statement Let \(d(n)\) be defined as the sum of proper divisors of \(n\) (numbers less than \(n\) which divide evenly into \(n\)).

Version Control Systems track changes to a folder and its contents in a series of snapshots.

The Principle Brandolini’s Bullshit Asymmetry Principle: The amount of energy needed to refute bullshit is an order of magnitude bigger than to produce it.

The Algorithm Iterate across the instances in memory.

The Algorithm Iterate across the instances in memory.

Motivation for Mathematical Grammar Statements in advanced mathematics have a complicated structure that is easier to understand if one is familiar with mathematical grammar.

To classify something, find things that are similar and label it with the same class as the most similar thing.

To classify something, find things that are similar and label it with the same class as the most similar thing.

Fall 1990.

Mum: Tiger-Mum tendencies, smart, gullible.

Investor Key Fund/Vehicle Period Annualized Returns After Fees Jim Simons Medallion Fund 1988 – 2018 (30) 39.1% George Soros Quantum Fund 1969 – 2000 (31) 32.0% Steven Cohen SAC 1992 – 2003 (11) 30.0% Peter Lynch Magellan Fund 1977 – 1990 (13) 29.0% Warren

Ongoing maintenance includes: fixing bugs, keeping systems operational, adapting to new platforms, modifying to fit new use cases, etc.

A fault is when a component deviates from its spec, while a failure is when the system no longer provides the required service to the user.

The access patterns for a data system (e.g. database, cache, etc.) motivate different implementations, and thus performance characteristics.

It’s hard to give pessimistic answers when ’s title says “Things Are Better Than You Think”… Educational Attainment Q1.

Topic 2: Shell Tools. missing.csail.mit.edu .

Topic 1: The Shell. missing.csail.mit.edu .

Classifying mathematics by its subject matter may be misleading because the kinds of questions being asked may be the same, despite different subject matter.

Description Create a todo list with the following features: addItem, deleteItem and viewList.

Description Covert a string, e.g. programmer into Morse code, e.g. .--..-.-----..-..-----..-.

Smart Beta Using relatively passive-rule based strategies to gain greater than market returns without assuming more risk than investing in a low-cost total stock market index fund.

Behavioralists believe that: Investors are not rational in present and future valuations of securities.

The mystical perfect risk measure is still beyond our grasp.

Many academics agree that to beat the market, one needs to assume greater risk - as opposed to trying to predict the market.

Fundamentalists tout past earnings growth as a most reliable indicator of future growth.

Is There Momentum in the Stock Market?

Technical Analysis Study past price movements and trading volume of trading to to predict when to buy/sell a stock.