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Alex S

United States

I am a mathematics PhD student at Pennsylvania State University

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61
Why is the number of integers between $2$ integers not their difference?
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39
Is basis change ever useful in practical linear algebra?
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35
Expected damage of a moonblade with N runes?
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26
Is there an “intrinsic” difference between a plane and a cylinder?
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23
Why is cardinality of set of even numbers = set of whole numbers?
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23
Is there a sequence with an uncountable number of accumulation points?
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23
Different arrows in set theory: $\rightarrow$ and $\mapsto$
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22
Function that decays faster than any polynomial, but not in the Schwartz space?
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22
Is a ring a set?
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21
Is there something between summation and integration?
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21
Shortest path between two points on a surface
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20
Is a continuous function plus a discontinuous function discontinuous?
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18
Space which is connected but not path-connected
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18
What is the use of Calculus?
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16
e and its applications
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15
Discussing the Integral of $\exp(-x^n)$
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14
How many parametrisations are needed to cover a sphere?
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14
What is a differential form?
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12
Difference between limsup and sup
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12
Easy math proofs or visual examples to make high school students enthusiastic about math
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12
Are there more transcendental numbers or irrational numbers that are not transcendental?
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11
Elementary topology examples
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11
Why doesn't the trigonometric Equation $\sin (x) \sin (2x) \sin(3x)=1$ have real solutions
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11
What happens if I repeatedly alternately normalize the rows and columns of a matrix?
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11
Is my current understanding of the fundamental of calculus correct?
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10
Series of binomial coefficient
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10
Are there fewer positive integers than all integers?
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10
Choosing randomly integers from $1$ to $10$
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9
If $x \in [0,3]$ and $y \in [0,4]$, what is the probability of $x < y$?
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9
Prove that the image of a a closed and bounded interval in $\mathbb{R}$ is a a closed and bounded interval in $\mathbb{R}$?
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