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Y(MATH)
A publication that answers that pesky little question of “why math?”
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Latest Article
“Negative Times Negative Is Positive”, But Why?
“Negative Times Negative Is Positive”, But Why?
A basic rule we all learn very early in our mathematical education is that “a negative number times/multiplied by a negative number is a…
StephenwithaPhD
Mar 20
Popular
An Interesting Interview Question.
An Interesting Interview Question.
Very recently, one of my students had an interview for an internship at a very prestigious investment bank. They were asked the following…
StephenwithaPhD
Oct 13, 2022
Can you solve this? Question 8. Questions my students have asked.
Can you solve this? Question 8. Questions my students have asked.
Continuing my series on the interesting questions that students have asked me, in this article we look at a relatively straightforward…
StephenwithaPhD
Feb 23
A Second Interesting Interview Question- Used By Google.
A Second Interesting Interview Question- Used By Google.
A couple of articles ago, I discussed an interview question a student had been asked that I found interesting.
StephenwithaPhD
Feb 16
Previous Articles
An Alternative Solution To The Golden Integral.
An Alternative Solution To The Golden Integral.
Building on my previous article,
StephenwithaPhD
Feb 10
Can you solve this? Question 7. Questions my students have asked.
Can you solve this? Question 7. Questions my students have asked.
Continuing my series on the interesting questions my students have asked me, in this article we look at a problem from the 1997 Polish…
StephenwithaPhD
Feb 3
Math Memes, Post 1. Memeifying Math.
Math Memes, Post 1. Memeifying Math.
For many years, I have been using memes in my lectures. There are two main purposes for this. Firstly, they add a bit of humor to the…
StephenwithaPhD
Jan 27
Forget The Golden Ratio, Let’s Discuss The Golden Integral!
Forget The Golden Ratio, Let’s Discuss The Golden Integral!
One of the first articles I ever wrote on medium discussed what I had always considered to be my favorite integral, the golden integral is…
StephenwithaPhD
Jan 20
I Went 30 Days Without Math And It Has Changed Everything!
I Went 30 Days Without Math And It Has Changed Everything!
As some of you may have noticed, I have not published for about a month. This was because, as the title suggests, I took a break from math…
StephenwithaPhD
Jan 12
What Level Can You Reach? The Surd/Radical Challenge.
What Level Can You Reach? The Surd/Radical Challenge.
Let’s play a game. I have 5 levels of surd-themed questions below. The game is, as you would expect, to start on level 1 (question 1) and…
StephenwithaPhD
Dec 8, 2022
Irrational Exponents-I Bet You Have Never Questioned This!
Irrational Exponents-I Bet You Have Never Questioned This!
Have you ever asked yourself how to calculate an irrational exponent? In this article we discuss the accurate way to do exactly this!
StephenwithaPhD
Dec 2, 2022
The 133-Second Challenge. Questions My Students Have Asked-Question 7.
The 133-Second Challenge. Questions My Students Have Asked-Question 7.
In this article we look at a teacher versus student winner-takes-all time challenge.
StephenwithaPhD
Nov 25, 2022
Can You Solve These Factorial-Themed Questions?
Can You Solve These Factorial-Themed Questions?
I have always enjoyed questions that involve factorials. The first puzzle I can remember being given in a maths class required the teacher…
StephenwithaPhD
Nov 17, 2022
Four Interesting Non-Calculator Math Questions.
Four Interesting Non-Calculator Math Questions.
I recently went searching for some non-calculator Olympiad questions for a beginners' training session and I came across 4 interesting…
StephenwithaPhD
Nov 11, 2022
Can you solve this? Question 6. Questions my students have asked.
Can you solve this? Question 6. Questions my students have asked.
Continuing my series on the interesting questions my students have asked me, in this article we look at an interesting algebraic problem
StephenwithaPhD
Oct 28, 2022
A Geometry Puzzle — I Am Really Bad At These
A Geometry Puzzle — I Am Really Bad At These
You will not see me write about a lot of geometry puzzles for the simple fact that I am not good at them! They often require seeing the…
StephenwithaPhD
Oct 20, 2022
Word Problems: A Student Nightmare But A Teacher’s Best Friend.
Word Problems: A Student Nightmare But A Teacher’s Best Friend.
In this article, we look at two typical high school level word problems and discuss why they, and word problems in general, are so useful.
StephenwithaPhD
Sep 29, 2022
Can you solve this? Question 5. Questions my students have asked.
Can you solve this? Question 5. Questions my students have asked.
Continuing my series on the interesting questions my students have asked me, in this article we look at an interesting number theory…
StephenwithaPhD
Sep 22, 2022
Is This A Mathematical Justification For Ghosts?
Is This A Mathematical Justification For Ghosts?
Is there a mathematical justification for ghosts? Some people have argued that it is all a matter of perspective and dimensions.
StephenwithaPhD
Sep 13, 2022
A Very Arrogant Math Teacher And A Fascinating Question About Irrationals.
A Very Arrogant Math Teacher And A Fascinating Question About Irrationals.
In this article, I want to share a story with you about a student’s fascinating question about irrationals and the response of a very…
StephenwithaPhD
Sep 2, 2022
Can you solve this? Question 4. Questions my students have asked.
Can you solve this? Question 4. Questions my students have asked.
Continuing my series on the interesting questions my students have asked me, in this article we look at a very old math problem that uses a…
StephenwithaPhD
Aug 27, 2022
Well, That’s A Useful Trick
Well, That’s A Useful Trick
A very useful and simple substitution trick.
StephenwithaPhD
Aug 22, 2022
Can you solve this? Question 3. Questions my students have asked.
Can you solve this? Question 3. Questions my students have asked.
Continuing my series on the interesting questions my students have asked me, we look at a trick to solving what appears to be a…
StephenwithaPhD
Aug 12, 2022
The World’s Most Difficult Math Puzzle!
The World’s Most Difficult Math Puzzle!
Coined the “Impossible Puzzle” by world-famous math game and puzzle creator Martin Gardner, the following puzzle is often considered to be…
StephenwithaPhD
Aug 4, 2022
Mathematical Fallacies, With Discussion.
Mathematical Fallacies, With Discussion.
In my previous article (Math Fallacies, Part 1), I discussed why I enjoy mathematical fallacies and how I believe we can learn a lot from…
StephenwithaPhD
Jul 16, 2022
Mathematical Fallacies, Part 1.
Mathematical Fallacies, Part 1.
In a previous article (A Math Teacher’s Nightmare. Incorrect-Correct Maths.), I discussed what I termed “Incorrect-Correct Maths”. These…
StephenwithaPhD
Jul 10, 2022
A Math Teacher's Nightmare. Incorrect-Correct Maths.
A Math Teacher's Nightmare. Incorrect-Correct Maths.
In this article, I want to highlight some of those infuriating invalid math operations which produce the correct answer. It can be…
StephenwithaPhD
Jul 1, 2022
Can you solve this? Question 2. Questions my students have posed.
Can you solve this? Question 2. Questions my students have posed.
Continuing my series on questions my students have asked me, we look at another algebra-themed question with a very interesting solution…
StephenwithaPhD
May 6, 2022
Complex Numbers, Where Do They Come From, And Why Should You Care?
Complex Numbers, Where Do They Come From, And Why Should You Care?
Many of the problems in mathematics involve finding solutions of equations. Over the centuries our number systems had to be expanded to…
StephenwithaPhD
Apr 29, 2022
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