Author Archives: mathtuition88

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How to speak to Human Singtel Customer Officer

Originally posted on Singapore Maths Tuition:
If you try calling the Singtel hotline 1688, you will spend most of your time to navigate the maze of options trying to speak to a human Singtel Customer Officer. I have not managed…

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“In my daughter’s school, no one scored A1 for Higher Chinese for the recent GCE O Levels”

O Level Higher Chinese Distinction Rate Quite surprising to see news on Kiasuparents that the distinction rate for ‘O’ Levels HCL is so low. Case study 1) In the below case study, zero students scored A1 for Higher Chinese in … Continue reading

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Boeing mocked Lion Air calls for more 737 Max training before crash

Source: Straits Times JAKARTA (BLOOMBERG) – Indonesia’s Lion Air considered putting its pilots through simulator training before flying the Boeing 737 Max but abandoned the idea after the planemaker convinced them in 2017 it was unnecessary, according to people familiar with the … Continue reading

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Paul Krugman Masterclass Review

URL: Paul Krugman Teaches Economics and Society Paul Robin Krugman is an American economist who is the Distinguished Professor of Economics at the Graduate Center of the City University of New York, and a columnist for The New York Times. … Continue reading

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Shopee Promo Code

Herewith is a code for Shopee SG offer: Promo Code: IACNYNEW $8 off with min. spend of $16 Valid from 2 Jan 2020, 00:00 to 31 Jan 2020, 23:59 Click on this link to enter the official Shopee website: Shopee.sg (Please … Continue reading

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O Level Bell Curve

Originally posted on Singapore Maths Tuition:
Source: https://www.reddit.com/r/singapore/comments/73cmgi/o_level_bellcurve/ It is well known that the “bell curve” is applied to the O Levels result. The most notorious example is E Maths, where 90+ or high 80s is required for the top grade…

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Free Exam Papers Latest Update

We have revamped our popular page on Free Exam Papers / Free Test Papers, fixing broken links and ensuring that the links to the PDF exam papers are updated. Basically, the page above will help you to save money in obtaining … Continue reading

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Biggest Fairprice store in Singapore

Biggest NTUC Fairprice in Singapore My previous post on Biggest Sheng Siong Outlet became quite popular. Hence, I decide to write a related post on the largest Fairprice supermarket (also known as NTUC supermarket) in Singapore. No. 1 Largest Fairprice in … Continue reading

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Best Pattern Recognition and Machine Learning Book (Bishop)

Pattern Recognition and Machine Learning (Information Science and Statistics) The above book by Christopher M. Bishop is widely regarded as one of the most comprehensive books on Machine Learning. At over 700 pages, it has coverage of most machine learning … Continue reading

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Sum of two metrics is a metric

It is quite straightforward to prove or verify that the sum of two metrics (distance functions) is still a metric. Suppose and are metrics. Define . Positive-definite . . Symmetry . Triangle Inequality Note that it follows by induction that … Continue reading

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Yusheng Promotion: 8 pax at only S$18.90 (A-One Claypot House)

[S$18.90](▼35%)🎁[A-One Claypot House]Prosperity Abalone Yu Sheng Serving up to 8 pax.(U.P $28.90). WWW.QOO10.SG This is quite a good deal (top seller on Qoo10). A-One is a well-known Chinese restaurant famous for their claypot dishes. The list of ingredients is quite … Continue reading

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Crying Koala Saved by Woman (Australian bushfire)

This looks like scene from hell! Poor koala is burnt by the bushfire. I didn’t know koala can make crying sounds. To donate, please go to the official WWF website: https://www.wwf.org.au/get-involved/bushfire-emergency#/ It is estimated by experts that koalas will go … Continue reading

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Python save csv to folder

In Python (pandas), saving a .csv file to a particular folder is not that hard, but then it may be confusing to beginners. The packages we need to import are: import pandas as pd import os.path Say, your folder name … Continue reading

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IP Math Syllabus (Integrated Programme Mathematics)

Students and parents new to IP (Integrated Programme) may be confused on what is the Mathematics syllabus of IP Math. Indeed, it is very confusing as every school has its own syllabus. In general, the syllabus as a whole is … Continue reading

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Cheap alternative to Dyson Vacuum (Xiaomi DREAME V9 Pro)

Though Singapore is a relatively rich country, many people still find Dyson Vacuum Cleaners unaffordable since it is well over a thousand dollars. Fortunately, there is a cheap and good alternative to Dyson Vacuum Cleaners (with many positive reviews): Xiaomi … Continue reading

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Ohm Electricity Renewal

Just renewed my subscription to Ohm Energy today. Use the below Ohm Promo code if you decide to switch to Ohm: *Ohm Promo Code: OHMREF25CC5A Here are some advantages of choosing Ohm: Switching to Ohm will not cause any disruption … Continue reading

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Tetra Vacation Food Review (Holiday Fish Food)

Just wanted to give a positive review for the Tetra Vacation “Slow Release Feeder” Holiday fish food, which feeds up to 14 days. I went for a vacation for around 12 days, and came back to zero fish/snail/shrimp deaths, and … Continue reading

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Useful Apps Homeschooling Parents Can Use to Help Their Children Learn

Useful Apps Homeschooling Parents Can Use to Help Their Children Learn There are many educational apps that are available to help students with various activities, but very few of them were specific to homeschooling parents. As I was researching apps … Continue reading

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Ohm Promo Code YouTube video

Ohm Promo Code: OHMREF25CC5A

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Ohm Energy Review

For those who are still hesitating on whether to switch to Ohm, I have collated all our previous blog posts on why you should choose Ohm, also known as Ohm Energy: Website: https://ohm.sg/price-plans-select *Ohm Promo Code: OHMREF25CC5A Ohm vs Geneco … Continue reading

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Ohm vs Geneco vs Tuas Power vs Keppel

*Ohm Promo Code: OHMREF25CC5A Firstly, just a disclosure that I am a happy customer of Ohm since 1 Nov 2018 (see my Ohm review blog post). Everything, from payment to electricity supply, is virtually perfect and hassle-free. It is very … Continue reading

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Ulgrim guide

Ulgrim is one of the lesser used legends in Brawlhalla, but I think he is probably one of the easiest legends for beginners (and also viable at high levels). Reason being his two weapons lance and axe are very easy … Continue reading

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SimplyGo App Review and Suggestion

SimplyGo is a wonderful app that allows you to use your Mastercard/ Visa credit cards as an “Ez-link” for public transport. Currently, certain credit cards do have “cashback” for SimplyGo, in particular: Contactless spending cashback cards: DBS Live Fresh, DBS … Continue reading

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DIY Box to Quiet Aquarium Air Pump

The air pump I am using currently is the Ocean Free Zero Noise Z-1000. It is actually already quite quiet (around 4o-45 decibels measured on a free iPhone app “dBMeter”). I decided to create a DIY box to further absorb … Continue reading

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Sellfy free account to be discontinued

Just received some news from Sellfy: Hi there, We have important news about your Sellfy account and your store https://sellfy.com/mathtuition88 You have been on our transaction fee only plan (Legacy plan) since you signed up for Sellfy. We are truly thankful for being with us … Continue reading

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2 types of chi-squared test

Most people have heard of chi-squared test, but not many know that there are (at least) two types of chi-squared tests. The two most common chi-squared tests are: 1-way classification: Goodness-of-fit test 2-way classification: Contingency test The goodness-of-fit chi-squared test … Continue reading

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Ohm Energy Referral Competition (2 Dec 2019 – 2 Feb 2020)

Just to share this Ohm Energy Referral Competition. If you are not a Ohm electricity user, sign up using the promo code OHMREF25CC5A now to begin the competition! Also read my blog article explaining why Ohm is the best electricity … Continue reading

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Fixed Ohm vs Ohm Discount

Many people have decided to switch to Ohm electricity, but are still confused which plan to take. The two best plans are Fixed Ohm and Ohm Discount. Personally, I think Ohm Discount is the better one, with this blog post … Continue reading

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Melafix Review and Research

Melafix is quite a popular medication in the aquarium hobby, by the company API. Chances are most people have at least heard about it. However, there is remarkably little information on this medication online, and whatever information is scattered and … Continue reading

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Ohm $20 Promo Code: OHMREF25CC5A

Originally posted on Singapore Maths Tuition:
*Ohm Promo Code: OHMREF25CC5A After extensive research, I find that Ohm is one of the best alternative electricity suppliers. Choose either Fixed Ohm or Discount Ohm depending on your likings. I chose Discount Ohm as…

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Ohm Electricity Review

I have been using Ohm as my electricity supplier since 01 Nov 2018. So far everything has been going 100% super smoothly. Cheaper electricity bills, and integrated billing system with SP services. Ohm has been processing everything efficiently in the … Continue reading

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Aquarium Salt dosage for Planted Tanks

As a general rule of thumb start with 1 tablespoon per 5-7 gallons of aquarium water. This is a safe dose for all fish and plants including salt sensitive corydoras. Source: https://www.ibcbettas.org/aquarium-salt-the-healthy-preventative-v-2-0/ In terms of milliliters, it is approximately: 15 … Continue reading

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Oven Power Trip

Bosch Oven Power Trip Apparently, it is quite common in Singapore (and other tropical countries like Malaysia, Indonesia) that the electric oven cause a power trip (or short circuit) due to the high humidity. Basically, the heating element tends to … Continue reading

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Popular packages in R and Python for Data Science

Most of the time, users of R and Python will rely on packages and libraries as far as possible, in order to avoid “reinventing the wheel”. Packages that are established are also often superior and preferred, due to lower chance … Continue reading

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Recall & Precision vs Sensitivity & Specificity

Other than accuracy rate, there are various metrics for machine learning to measure how “accurate” the model is. Some popular ones for binary classification are sensitivity (true positive rate) and specificity (true negative rate). In computer science, recall and precision … Continue reading

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LaTeX Table Style Guidelines

Drawing LaTeX tables is well known to be quite troublesome. Fortunately, there are some excellent tools online to generate LaTeX code for tables, e.g. Convert Excel to LaTeX. Even after that, there are some stylistic dilemmas, for instance how many … Continue reading

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Express vs Normal Academic for borderline PSLE score

Originally posted on Singapore Maths Tuition:
For students scoring in the borderline of around 190- 200 PSLE score, there is a dilemma of going to Express stream in a neighborhood school, or Normal Academic N(A) in a more established school.…

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Ways To Turn Writing Inspiration Into Money

A good writer is gifted with imagination and the ability to capture the imagination of readers. A lot of these writers begin writing as a hobby. However, some have found a way of converting this hobby into an economic activity … Continue reading

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Singaporean van Gogh – Mr Sim Kah Lim

Originally posted on Singapore Maths Tuition:
This is an amazing story of an amazing artist. His passion for painting is so great, according to his therapist he wants to paint 24/7 without eating or sleeping. I find his paintings of…

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Narrow Leaf Java Fern vs Normal Java Fern

It is well known that the Java Fern has different “varieties” — such as “trident”, “Windelov”, “Narrow Leaf” and “Needle Leaf”. I kept normal Java Fern, as well as “Narrow Leaf” Java Fern in Singapore, at a temperature of around … Continue reading

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How to Balance College and Work and Find Some Spare Time

No one said it would be easy, but if you’re looking for ways on how to balance college and work, use these tips to improve time management. A recent survey revealed that the majority of students work while attending college. … Continue reading

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Bend It Like Beckham: How to Become a Pro Soccer Player

How to Become a Pro Soccer Player Ever wanted to bend it like Beckham? Turns out, you can with the right training and dedication. Read on to learn how to become a pro soccer player. Sure, a lot of people … Continue reading

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Fish at Yale-NUS Eco pond

Some very interesting fish (South American cichlids?) at the Yale-NUS Eco-pond. It is quite an unknown place, located deep inside U-Town. Not many people know of its existence. Do check it out if you pass by NUS. At around the … Continue reading

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How to make work-life balance work (TED talk)

Quotes from the talk: “People are working long hard hours at jobs they hate, to earn money to buy things they don’t need, to impress people they don’t like” A book by the same speaker: Fat, Forty, and Fired: One … Continue reading

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Amazing method to unblock stuffy nose

Originally posted on Singapore Maths Tuition:
Out of all the methods I checked on YouTube, this method seems to be the most effective in terms of instantly unblocking your nose. Basically pinch your nose and sway, until you are almost…

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LaTeX Horizontal Flowchart (Workflow)

Source: https://tex.stackexchange.com/questions/368482/one-horizontal-line-flow-chart?rq=1 Just found an excellent source on how to draw a simple (slightly fanciful) horizontal flowchart using LaTeX (TikZ). The output is very neat: The code is reproduced here (in case the original source gets deleted): \documentclass[tikz, margin=3mm]{standalone} \usetikzlibrary{arrows.meta, … Continue reading

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Chinese Tutor (has experience in tutoring NYGH/RGS/RI students)

Originally posted on Singapore Maths Tuition:
Chinese Tuition Singapore 新加坡华文补习老师 Tutor: Ms Gao (高老师) Ms Gao is a patient tutor, and also effectively bilingual in both Chinese and English. A native speaker of Mandarin, she speaks clearly with perfect accent…

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Amazing method to unblock stuffy nose

Out of all the methods I checked on YouTube, this method seems to be the most effective in terms of instantly unblocking your nose. Basically pinch your nose and sway, until you are almost out of breath, then breath in … Continue reading

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Cai Yun Zhui Yue Piano Sheet Music (PDF)

This is a classical piano tune that is masterfully transcribed (by arranger Wang Jianzhong 王建中). In English, it is also called “Colourful Clouds Chasing the Moon”. In Chinese, it is called 彩云追月. The transcription is really very nice, the harmony … Continue reading

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