List questions from complex-numbers

Published on 02 Jul 2018 - 23:51

111

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Problem with Complex Variables

Published on 26 Mar 2026 - 14:26

210

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Why doesn't $\sqrt{ab}=\sqrt{a}\sqrt{b}$ work for $a,b<0$?

Published on 26 Mar 2026 - 1:28

131

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Why should we ignore the absolute value of $\sec\theta$?

Published on 25 Mar 2026 - 11:13

49

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Confusion about roots

Published on 03 Jul 2018 - 11:10

81

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What is $\epsilon^{i x}$ for $x\in\mathbb{R}$ and $\epsilon\to0^+$?

Published on 03 Jul 2018 - 13:36

265

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Alternative ways to represent the complex numbers as matrices

Published on 04 Jul 2018 - 0:42

46

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complex analysis Laurent theorem

Published on 04 Jul 2018 - 7:02

177

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Show that $|1-z| \leq |z|+1$

Published on 25 Mar 2026 - 14:22

1.5k

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Sum of a Complex number Z with its Conjugate equals to zero. Conclusion?

Published on 04 Jul 2018 - 8:11

222

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Describing the mapping of a complex domain D under the complex function $f(z) = \sqrt{z^2+1}$.

Published on 04 Jul 2018 - 12:33

224

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Proof that involving inequalities and complex numbers

Published on 04 Jul 2018 - 16:40

32

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Help determining a meromorphic function satisfying certain conditions

Published on 04 Jul 2018 - 16:57

1.3k

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What is the real and imaginary part of complex infinity?

Published on 23 Mar 2026 - 0:55

2.5k

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Meaning of the sign of a complex number

Published on 04 Jul 2018 - 20:35

List Question

Describe Image with restrictions on $\mathbb{C}$

Problem with Complex Variables

Why doesn't $\sqrt{ab}=\sqrt{a}\sqrt{b}$ work for $a,b<0$?

Why should we ignore the absolute value of $\sec\theta$?

Confusion about roots

What is $\epsilon^{i x}$ for $x\in\mathbb{R}$ and $\epsilon\to0^+$?

Alternative ways to represent the complex numbers as matrices

complex analysis Laurent theorem

Show that $|1-z| \leq |z|+1$

Sum of a Complex number Z with its Conjugate equals to zero. Conclusion?

Describing the mapping of a complex domain D under the complex function $f(z) = \sqrt{z^2+1}$.

Proof that involving inequalities and complex numbers

Help determining a meromorphic function satisfying certain conditions

What is the real and imaginary part of complex infinity?

Meaning of the sign of a complex number

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