celtschk

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130 Posts

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May
31
 answered Back to basics: What is the fastest way to multiply two digit numbers?
May
30
 answered Numbers of students registered for various courses
May
30
 answered Prove that the equation $3x-\sin(2x)=0$ has only one solution
May
29
 answered homogeneous nonlinear functions
May
29
 answered two-dimensional probability density
May
28
 answered how can we prove that this function is homomorphism?
May
26
 answered What is the range of the following function?
May
26
 answered Bijection between $\mathbb{R}$ and $\{(X,Y), X\subset Y\subset \mathbb{N}\}$
May
26
 answered What is $-i$ exactly?
Oct
5
 answered How to solve this conditional probability problem?
Oct
5
 answered Does a Lattice with min and max operator reduce to a total order?
Oct
5
 answered An element within a set within a set from a power set
Oct
2
 answered Help explaining the sign of a permutation
Sep
24
 answered What is the difference between an array and a vector?
Sep
23
 answered Some quick math problems I'm stuck on
Sep
23
 answered Please could someone explain what P(A $\cup$ B) means? and how you know what its out of?
Sep
22
 asked Are there infinitely many “super-palindromes”?
Sep
20
 answered What are imaginary numbers?
Sep
20
 answered Proof of derivative of $e^x$ is $e^x$ without using chain rule
Sep
20
 answered Proof: Symmetric and Positive Definite
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