# Jack Dawkins

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# 58 Questions

 29 Bag of tricks in Advanced Calculus/ Real Analysis/Complex Analysis 13 A field of order $32$ 11 Finding all matrices $B$ such that $AB=BA$ for a fixed matrix $A$ 7 Schwarz's Lemma, fixed points question 6 $A$ is some fixed matrix. Let $U(B)=AB-BA$. If $A$ is diagonalizable then so is $U$?

# 1,355 Reputation

 +5 Every solution of the system is attracted to the center manifold +5 $A$ is some fixed matrix. Let $U(B)=AB-BA$. If $A$ is diagonalizable then so is $U$? +10 Matrix exponentiation intuition. +5 $-p_{xx}+f(p)=0$ has a unique solution $p$

 6 Finding the limit of $\dfrac{\sin x}{2x}$ as $x\to 0$ 5 Values of $6 + \int_a^x \frac{f(t)}{t^2} dt = 2 \sqrt{x}$ 3 Stuck on an epsilon-delta proof where I let delta be a minimum of two values 3 How can I find this limit? 3 Maclaurin series of $f(x) = \frac{1}{1-2x}$

# 52 Tags

 22 calculus × 12 3 epsilon-delta 9 limits × 2 3 sequences-and-series 6 real-analysis × 12 2 linear-algebra × 18 6 derivatives × 3 2 integration × 2 5 algebra-precalculus 2 definite-integrals

# 6 Accounts

 Mathematics 1,355 rep 517 TeX - LaTeX 247 rep 29 Ask Different 106 rep 2 Super User 101 rep English Language & Usage 101 rep