Category Archives: Mathematics

The City College CUNY Class: MATH 30800 Advanced Math

Posted on February 3, 2015 by timlyg

Instructor: Gennady Yassiyevich Science: Inductive, Empirical, Scientific Method Math: Deductive, Rational, Axiomatic Method Natural numbers defined elegently by empty sets? 0 is in N here. ========= Logic: Statement (able to assign truth value) or closed sentence vs. open sentence: P(x) … Continue reading →

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Latex & MS Word Equation Tools

Posted on October 22, 2014 by timlyg

Time to learn LaTex and hotkeys for MS Word Equations. A very helpful site: Very elaborate tutorial. Though not complete, these are some lists of shortcuts for MS Word in PDF: shortkeys list #1, list #2, list #3, list #4 … Continue reading →

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A Briefing on Chess Openings

Posted on July 15, 2014 by timlyg

By Bill Wall: Here are some classifications of chess openings. Open games are usually double king pawn games (1.e4 e5). The most common response is 2.Nf3 (King's Knight Opening).  However, White can play: 2.a3 - Mengarini's Attack 2.Bb5 - Portuguese … Continue reading →

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Another prized $1000 Math Problem: Happy Ending Problem

Posted on July 13, 2014 by timlyg

It's called the Happy Ending Problem: How many points for convex n-gon? If one can prove that A price of $1000 is awarded.

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Smarter way to cut a cake

Posted on June 25, 2014 by timlyg

Taught by Francis Galton, the mathematician and polymath. Cut a slice across the entire cake, not a triangular pie. This keeps the cut side from drying.

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The Science of Prediction

Posted on June 25, 2014 by timlyg

My journey in the mathematics of prediction started with chaos theory. Now I have cliodynamics by Peter Turchin (predicting history of civilizations). Then there is Econophysics - using food prices as a variable to predict instability. Then there's meteorology.

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CUNY Math Challenge

Posted on February 18, 2014 by timlyg

I've registered for 4 Rounds of fun. Because I also want some money $2,500. First round questions: (One week left) Problem 1 How many different (non-congruent) triangles have integer side lengths and perimeter 2014? Alcuin's Sequence is the hint. A … Continue reading →

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Polynomial Interpolation: Formulating equation from a graph

Posted on February 18, 2014 by timlyg

There was a course which I have forgotten. It was not my course. It was done by a graduate friend of mine. I helped him do his homework years ago. It was a course in his master's program. I had … Continue reading →

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The City College CUNY Class: Math 20200 Calculus II

Posted on February 6, 2014 by timlyg

Using MathJax for html math notations should be fun. There are video tutorials. For WordPress, there are plugins such as wpmathpub. There is another project program I could make, to leech solutions off chegg, before the trial which I just … Continue reading →

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Chess Openings Trainer: My own version

Posted on February 3, 2014 by timlyg

Since I cannot find them on the web, I shall create my own. It will be a website dedicated to memorizing chess openings. I shall input pgn moves for each openings and an explanations for each of the moves from … Continue reading →

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