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Trader Sharpe
@tradersharpe
57
mathematics, education, trading, analysis, philosophy
Followers
431
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Location
Singapore
Created
2017-08-15 08:04
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tradersharpe
steemiteducation
2017-10-22 20:20
Integral of 1/√e^2x+1 (Trigo Approach)
I happened to spot @masterwu's article on the above integral and decided, just for fun, to try doing it via another approach. As he noted, there is another substitution via hyperbolic functions. However,
$ 21.496
86
5
tradersharpe
steemstem
2017-10-21 19:47
Simplifying Roots
Just like Facebook relationships, roots can get "complicated". No, I am not talking about roots of plants or trees. I am talking about things like , , and . These are expressions involving square
$ 18.569
75
9
2
tradersharpe
steemstem
2017-10-17 18:35
"Singapore Math": The Ribbons Problem from PSLE 2017
Image Credit: Derived from CC0 image @ Dreamstime This is not the first time that a mathematics problem from Singapore's high-stakes Primary School Leaving Examination (PSLE) has made the headlines and
tradersharpe
steemstem
2017-10-16 20:15
How to plot vertical lines
Some graphing software or calculators (on a certain mode) can plot curves only when y is expressed as a function of x. So how do you plot vertical lines? The answer is that you cannot. It is impossible.
tradersharpe
steemstem
2017-10-16 18:27
The Sharp Mathematics Contest #2 -- Winners
In The Sharp Mathematics Contest #2, the following challenge was given:- The Challenge Comments on Participation The challenge was meant to encourage readers to read and apply information from my article
tradersharpe
steemstem
2017-10-12 20:46
Visual Division of Non-Unit Fractions
My article on Visualising the Division of Fractions is spreading like wild fire on social media. The basic idea is that when you divide by a fraction (e.g. half), we are counting with smaller units (e.g.
tradersharpe
steemstem
2017-10-11 17:05
The Sharp Mathematics Contest #2
The Sharp Mathematics Contest #2 Stop Press! Are your eyes sharp enough to observe? Are your ears sharp enough to listen for flat tones? Can you handle the risk with a good Sharpe Ratio? Is your mind as
tradersharpe
steemstem
2017-10-10 18:17
Visualising the Division of Fractions
Many people have heard the rumor that when you divide by a fraction, you flip the fraction and multiply. Why? That's because their teachers told them so! But why? That's because their teachers' teachers
tradersharpe
steemstem
2017-10-09 17:49
Mathematics & Education Digest (10 October 2017)
Here is a compilation of my recent articles on education and/or mathematics, in case you have missed any of them. Pedagogy (Good for teachers to read too) “Singapore Math” : Clear Communication and
tradersharpe
steemstem
2017-10-09 17:34
The Sharp Mathematics Contest #1 -- Winners
In The Sharp Mathematics Contest #1, the following puzzle was posed:- The Puzzle Alice and Betty are arguing over the set P of all positive whole numbers, and the set E of all positive even numbers. Alice
tradersharpe
steemstem
2017-10-09 17:19
The Subtlety of Galileo's Paradox of Infinity
This article my "model answer" to my "Sharp Mathematics Contest #1", which is a modified version of Galilei's Paradox comparing the set of positive integers with the set of even positive
tradersharpe
education
2017-10-08 20:30
Phone/SMS Etiquette in the Today's World
Next time, when you try to contact other people, please identify yourself! If you have nothing to hide, what's wrong with telling the other person who you are? Why do you have to be so secretive? In today's
tradersharpe
steemstem
2017-10-07 19:21
Is 0 a factor or multiple of any number?
In yesterday's article, I issued a challenge to draw a Hasse diagram for the divisibility relation for the numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10. I also asked these questions to prod i.e. STEEM-u-late
tradersharpe
steemstem
2017-10-06 18:38
Exploring HCF (GCD) and LCM with Hasse Diagrams
In yesterday's article, I was talking about finding the Highest Common Factor (HCF) a.k.a. Greatest Common Divisor (GCD) and the Lowest Common Multiple (LCM) using a calculator. Actually you don't need
tradersharpe
steemstem
2017-10-05 20:10
Finding the HCF (GCD) and LCM with a calculator
Today I shall share with you how to find the Highest Common Factor (HCF) a.k.a. Greatest Common divisor (GCD) in America, and the Lowest Common Multiple using the “fraction” feature that is available in
tradersharpe
steemstem
2017-10-04 20:28
The Monk-Porridge Theorem
What has the above picture got to do with the following mathematical inequality problem? This inequality looks ... er ... challenging doesn’t it? We do not know what x is, how can we conclude anything?
tradersharpe
steemstem
2017-10-03 17:43
“Singapore Math” : The Importance of Reflection/Review After Problem-Solving
Here is a confounding geometrical Mathematics problem around primary 5 or 6 (~ grade 5 or 6) level in Singapore. Take a look:- Have a go at it! Hmmmmm .... There are five unknowns, aren’t there? It looks
tradersharpe
steemstem
2017-10-03 08:48
The Sharp Mathematics Contest #1
Hey people! Just for fun, I have decided to organise a mathematics contest. The prizes, from my own Steem wallet, are:- Prizes 1st Prize: 5 SBD 2nd Prize: 3 SBD 3rd Prize: 2 SBD If I get sponsors, then
tradersharpe
steemstem
2017-10-02 20:06
A Fun New Way to find Lowest Common Multiples (LCM)
Can a number eat and swallow another number? Before we examine this proposition, look at the problem below. There are many ways to find the Lowest Common Multiple (LCM) of numbers. In this article, I introduce
tradersharpe
lymmerikslimericks
2017-10-02 07:31
The Pest who joined a Limerick Contest
There was once a poor pesky pest Who joined a limerick contest. His rhyming was poor, And was shown the door, But he still thought he was the best! @originalworks
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