Date: 29 November 2020 What do I want to achieve in the year 2021? Since the year 2018, I gave myself 3 goals per year. And, I spend my best time (in the morning) to achieve those goals. So far, this approach is very effective in achieving goals. But, when I set those goals, I …

## Reflection on the Year 2020

Date: 8 November 2020 As we near the end of the Year 2020, it is time to reflect on the goals set at the beginning of the year. Reflection is vital as Albert Einstein said: We cannot solve our problems with the same thinking we used when we created them. Albert Einstein On Goals I …

## How to Spend Less?

Date: 4 October 2020 (while I am struggling to not spending money on useless items) If I have an infinite amount of money, I don’t need to spend less. But before I reach that level (just kidding for an infinite amount of money. But I can be rich enough to afford most of the things …

## [Efficiency Hack] Read What You Need Using RSS Feed

Date: 3 October 2020 How many news apps are installed on your phone? I used to have many. Every day, you will receive hundreds of notifications telling you what you should read now. I don’t like being passively fed with information that I don’t really care. So, I found a way to read only what …

## Reading Math Symbols

Date : 7 July 2020 Sometimes, it is quite scary to read Maths. Just like learning a new language, we need to understand the symbols/ vocabulary first. In this post, I am going to talk about some common maths symbols. The following content is extracted from my YouTube video. Logic Symbols Conditional and Bi-conditional Connectives …

## Brainteaser #5

A small boat is floating in a swimming pool. The boat contains a very small (very very very small) but very heavy rock. If the rock is tossed out of the boat into the pool, what happens to the water level in the pool? It is related to Physics, but also common sense. A floating …

## Math and Machine Learning Resources for Self Learner

Linear Algebra Textbook: Linear Algebra Done Right (Edition 3)Selected Exercises: Berkeley Math 110Solutions: Link Textbook: Linear Algebra Done Wrong Probability Introduction to Probabilityhttps://ocw.mit.edu/resources/res-6-012-introduction-to-probability-spring-2018/ andhttps://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-041-probabilistic-systems-analysis-and-applied-probability-fall-2010/ Machine Learnings Cornell CS4780 Machine Learning for Decision MakingYouTube: https://www.youtube.com/channel/UC7p_I0qxYZP94vhesuLAWNA/playlistsCourse webpage: https://www.cs.cornell.edu/courses/cs4780/2018fa/Course note: https://www.cs.cornell.edu/courses/cs4780/2018fa/lectures/

## Brainteaser #4

I have a 20*20 chessboard and a very large box of identical cubes. Each square on the chessboard is the same size as the face of any cube. I am going to arrange piles of cubes on the chessboard in a special pattern. I align one edge of the board so it is running north-south. …

## Brainteaser #3

## Brainteasers #2

are the nine integers from one to nine (not necessarily in order). They satisfy the following constraints: What values are taken by each of A to I? Answer below: Since and sum to 40, must be 5. If E is 5, subtracting equation 1 with equation 2, A – 5 – F = 0; subtracting …