User user541686 - Mathematics Stack Exchange

64 votes

Accepted

Intuitively, what is the difference between Eigendecomposition and Singular Value Decomposition?

answered Apr 17, 2013 at 23:18

53 votes

Easy example why complex numbers are cool

answered Dec 25, 2014 at 2:33

36 votes

Why does the Newton-Raphson method not converge for some functions?

answered Aug 27, 2017 at 22:28

28 votes

Arithmetic mean. Why does it work?

answered Sep 7, 2014 at 5:12

27 votes

Most ambiguous and inconsistent phrases and notations in maths

answered Nov 17, 2014 at 0:25

22 votes

Why not include as a requirement that all functions must be continuous to be differentiable?

answered Jun 20, 2018 at 0:46

21 votes

Why is the notion of analytic function so important?

answered Jun 15, 2018 at 5:26

21 votes

How to solve the inequality $x^2>10$ using square roots?

answered Aug 16, 2014 at 8:57

17 votes

Why study finite-dimensional vector spaces in the abstract if they are all isomorphic to $R^n$?

answered Dec 27, 2016 at 2:44

16 votes

What are some mathematically interesting computations involving matrices?

answered Aug 28, 2017 at 9:12

16 votes

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Does the alternating sum of prime reciprocals converge?

answered Jun 19, 2017 at 15:29

16 votes

Logic behind dividing negative numbers

answered Aug 12, 2014 at 7:15

14 votes

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Why don't we use the partial derivative symbol for normal derivatives?

answered Feb 24, 2019 at 7:35

13 votes

What does this converge to and why?

answered Mar 3, 2018 at 6:29

13 votes

Examples of problems that are easier in the infinite case than in the finite case.

answered Aug 11, 2016 at 2:54

12 votes

Distributive law for fraction arithmetic

answered Jun 22, 2015 at 8:30

12 votes

Accepted

How to verify if a curve is exponential by eyeballing?

answered Jan 12, 2017 at 12:08

11 votes

Is log the only choice for measuring information?

answered Jun 12, 2017 at 1:27

11 votes

Is there a symbol for plus and minus as opposed to plus or minus?

answered Jan 8, 2016 at 13:59

11 votes

What is the closed form of the $f$ with $f(1)=1$, $f(2)=7$ and $f(n)=7f(n-1)-12f(n-2)$ ($n\ge 3$)?

answered Jul 15, 2019 at 3:25

10 votes

How to solve this recurrence $K(n)=2K(n-1)-K(n-2)+C$?

answered Jul 9, 2015 at 11:05

10 votes

What are "instantaneous" rates of change, really?

answered Jun 12, 2015 at 2:00

8 votes

Examples of problems that are easier in the infinite case than in the finite case.

answered Aug 11, 2016 at 2:48

8 votes

What's wrong in this method of solving a difference equation?

answered Jun 21, 2018 at 16:01

7 votes

What actually is a polynomial?

answered Mar 16, 2017 at 5:07

7 votes

What kind of functions cannot be described by the Taylor series? Why is this?

answered Feb 2, 2017 at 8:15

7 votes

How important are the role of asymptotes in a hyperbola?

answered Aug 14, 2017 at 4:51

7 votes

Stopping the "Will I need this for the test" question

answered Jan 9, 2014 at 8:19

6 votes

If I flip a coin 1000 times in a row and it lands on heads all 1000 times, what is the probability that it's an unfair coin?

answered Jul 2, 2015 at 4:29

5 votes

Solve a system of differential equations

answered Jan 1, 2015 at 14:42

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78 Answers

Intuitively, what is the difference between Eigendecomposition and Singular Value Decomposition?

Easy example why complex numbers are cool

Why does the Newton-Raphson method not converge for some functions?

Arithmetic mean. Why does it work?

Most ambiguous and inconsistent phrases and notations in maths

Why not include as a requirement that all functions must be continuous to be differentiable?

Why is the notion of analytic function so important?

How to solve the inequality $x^2>10$ using square roots?

Why study finite-dimensional vector spaces in the abstract if they are all isomorphic to $R^n$?

What are some mathematically interesting computations involving matrices?

Does the alternating sum of prime reciprocals converge?

Logic behind dividing negative numbers

Why don't we use the partial derivative symbol for normal derivatives?

What does this converge to and why?

Examples of problems that are easier in the infinite case than in the finite case.

Distributive law for fraction arithmetic

How to verify if a curve is exponential by eyeballing?

Is log the only choice for measuring information?

Is there a symbol for plus and minus as opposed to plus or minus?

What is the closed form of the $f$ with $f(1)=1$, $f(2)=7$ and $f(n)=7f(n-1)-12f(n-2)$ ($n\ge 3$)?

How to solve this recurrence $K(n)=2K(n-1)-K(n-2)+C$?

What are "instantaneous" rates of change, really?

Examples of problems that are easier in the infinite case than in the finite case.

What's wrong in this method of solving a difference equation?

What actually is a polynomial?

What kind of functions cannot be described by the Taylor series? Why is this?

How important are the role of asymptotes in a hyperbola?

Stopping the "Will I need this for the test" question

If I flip a coin 1000 times in a row and it lands on heads all 1000 times, what is the probability that it's an unfair coin?

Solve a system of differential equations