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bsdshell

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algebra-precalculus

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Questions (36)

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25	Need verification - Prove a Hermitian matrix $(\textbf{A}^\ast = \textbf{A})$ has only real eigenvalues
17	Strictly diagonally dominant matrices are non singular
15	What is the difference between linear transformation and linear operator?
8	$\sqrt{2\sqrt{2\sqrt{2\cdots}}}=2$
5	Is Complex Numbers the biggest field? If yes, is there any easy proof to understand it?

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Reputation (1,369)

+10	Is Complex Numbers the biggest field? If yes, is there any easy proof to understand it?
+10	What is the difference between linear transformation and linear operator?
+10	Need verification - Prove a Hermitian matrix $(\textbf{A}^\ast = \textbf{A})$ has only real eigenvalues
+10	Try to derive the length of curve from first principal, can you guys check whether there is any error on my steps.

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Answers (7)

Votes Activity Newest

4	how to visualize binomial theorem geometrically?
2	How to compute the exponent?
1	Solve $(x-2)\ln x=0$
1	Matrix multiplication proof: $(A+B)^k$ for matrices such that $A^2=B^2=0$ and $AB=BA$
0	Define $a\ast b=a+b+5$, and show $(\Bbb Z,\ast)$ is a group.

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Tags (38)

4 binomial-coefficients	1 matrices × 10
4 combinatorics	1 logarithms
3 algebra-precalculus × 3	0 proof-verification × 6
2 exponentiation	0 abstract-algebra × 4
1 linear-algebra × 10	0 calculus × 3

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Bookmarks (36)

Votes Activity Newest Views Added

421	Proofs that every mathematician should know. [closed]
155	Proof that the trace of a matrix is the sum of its eigenvalues
152	How to distinguish between walking on a sphere and walking on a torus?
86	What are differences between affine space and vector space?
80	Determinant of a non-square matrix

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	Mathematics	1,369 rep	4 gold badges12 silver badges19 bronze badges
	Stack Overflow	429 rep	4 silver badges13 bronze badges
	English Language & Usage	117 rep	1 silver badge2 bronze badges
	Meta Stack Exchange	101 rep	1 bronze badge
	MathOverflow	101 rep

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