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MathSolver

@mathsolver

Majored Mathematics and Elec.Engineering. Currently Graduate student in Financial Engineering

249 followers 140 following 143 posts Reputation 53.14

MathSolver
@mathsolver Sep 10, 2018, 12:59 PM UTC

[Math talk #26] Greatest Common Divisor

(Image source Link, CC0 license) # The Greatest common divisor In the last post I introduced the integer division algorithm. Given two integers with , there exist unique quotient and remainder such t…

20 upvotes 4 replies $0.05
MathSolver
@mathsolver Sep 9, 2018, 2:47 PM UTC

[Math Talk #24] Integer Division Algorithm

(Image Source Link, CC0 license) We all know how to obtain quotients and remainder using the division algorithm for integers. But why is it always possible to have a unique pair of quotient and remai…

21 upvotes 7 replies $0.23
MathSolver
@mathsolver Sep 6, 2018, 1:23 PM UTC

[수학 이야기 #23] 13일의 금요일은 과연 특별한 날일까?

(이미지 출처 CC0 license) # 13일의 금요일은 특별한가? ## 그레고리력의 주기 그레고리력의 규칙을 다시한번 살펴보자. - 평년은 365일로 한다. - 4의 배수인 해는 원칙적으로 윤년 (366일) - 100의 배수인 해는 윤년에서 제외 - 400의 배수이면 예외적으로 윤년에 포함시킴. 따라서 그레고리력은 음력과 관련된 설날, 추석, 24절기…

31 upvotes 8 replies $0.18
MathSolver
@mathsolver Sep 5, 2018, 11:55 AM UTC

[수학 이야기 #22] 날짜를 알면 요일을 알 수 있다?!

(이미지 출처, CC0 license) # 날짜와 요일의 관계 ## 율리우스력에서 그레고리력으로의 전환 율리우스 카이사르가 도입한 율리우스력은 다음과 같은 규칙으로 날짜를 계산하였다. 1. 평년은 일 이고, 4년마다 윤년 (366일)을 배치한다. 이는 굉장히 부정확한 날짜 계산법이었는데, 그 이유는 지구가 태양을 한 바퀴 돌아 제자리로 올 때까지 걸리는…

20 upvotes 9 replies $0.44
MathSolver
@mathsolver Sep 4, 2018, 1:10 PM UTC

[CS and Math #21] Matrix Multiplication - Strassen's Algorithm

[1] # Matrix Multiplication Technique ## Difficulty of Matrix Multiplication Simply, a matrix is nothing but rectangular array of numbers. We say a matrix has rows and columns if it is of the form No…

25 upvotes 2 replies $0.20
MathSolver
@mathsolver Sep 3, 2018, 8:39 AM UTC

[Math Talk #20] Fibonacci numbers and their relationships

[1] # Relationship between Fibonacci numbers ## 1. The History We all know what Fibonacci sequence is, but to be sure, let's just state the full recurrence relation here. A Fibonacci sequence is coll…

29 upvotes 4 replies $0.04
MathSolver
@mathsolver Sep 2, 2018, 1:41 PM UTC

[Math Talk #19] Infinite tasks in finite time? - Supertasks

[1] # Infinitely many tasks in Finite amount of time? Today I will post about old but gold philosopical paradoxes; all are considered as supertasks . ## 0. What is a Supertask? A supertaks is a task…

25 upvotes 2 replies $0.07
MathSolver
@mathsolver Sep 1, 2018, 1:36 PM UTC

[Math Talk #18] Secret of Shuffling - Derangements

[1] ## 0. What is a Derangement? In mathematics, permutation is an act of arranging all the members of a set into some sequence or order. A permutation which leaves no element fixed is called a deran…

177 upvotes 4 replies $1.07
MathSolver
@mathsolver Sep 1, 2018, 5:14 AM UTC

Swallow Curve

A harmonograph is a mechanical apparatus that employs pendulums to create a geometric image. The drawings created typically are Lissajous curves, or related drawings of greater complexity. A typical…

8 upvotes 2 replies $0.01
MathSolver
@mathsolver Aug 31, 2018, 2:29 PM UTC

[Math Paradox #17] Covering Infinite Area using Finite Paint - Gabriel's Horn

[1] # Paradox and Math ## Be Careful! Starting with this post, next 3 to 4 posts will be about paradoxes in Math. In fact, most of the topics that are considered as mathematical paradox are not real…

22 upvotes 6 replies $0.03