/u/MysticalDragoneer's posts in /r/learnmath

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express z^2-2z+3 in powers of z-1?

4 upvotes

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Power Series Expansion for (1-z)^a, a = -1, -2, -3

2 upvotes

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A x (f R) where is A,R vector, r scalar field. Is there a way to say f ( A x R) ? and treat f as a scalar?

2 upvotes

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Integrating a Vector Field A(u) from u=a to u=b? New to me

1 upvotes

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Looking for resources on possible “For a symmetric Matrix, prove P” or similar

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If x_t approaches a number X at t->infty then is the length of the arc traced by x finite?

1 upvotes

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1/sin z; is z = 0, \pi simple poles? How do I do the integral with the curve around 0?

1 upvotes

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Complex Integral of (pi cot pi z) / (z^2 + a^2) ? Around an infinite loop (at the limit)

1 upvotes

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Integral of (e^mx / (1+e^nx)) dx from -inf to inf; complex integration

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What are sufficient conditions for a symmetric matrix to be positive (semi) definite ?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
express z^2-2z+3 in powers of z-1?	4
Power Series Expansion for (1-z)^a, a = -1, -2, -3	2
A x (f R) where is A,R vector, r scalar field. Is there a way to say f ( A x R) ? and treat f as a scalar?	2
Integrating a Vector Field A(u) from u=a to u=b? New to me	1
Looking for resources on possible “For a symmetric Matrix, prove P” or similar	1
If x_t approaches a number X at t->infty then is the length of the arc traced by x finite?	1
1/sin z; is z = 0, \pi simple poles? How do I do the integral with the curve around 0?	1
Complex Integral of (pi cot pi z) / (z^2 + a^2) ? Around an infinite loop (at the limit)	1
Integral of (e^mx / (1+e^nx)) dx from -inf to inf; complex integration	1
What are sufficient conditions for a symmetric matrix to be positive (semi) definite ?	1