List questions from complex-numbers

Published on 29 Mar 2026 - 12:04

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$A$ and $A^2$ have same characteristic polynomial

Published on 28 Mar 2026 - 12:34

105

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Riemann Zeta representation when $\operatorname{Re}(s)<0$

Published on 29 Mar 2026 - 17:25

107

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Quaternion differentiation following complex number example

Published on 25 Mar 2026 - 20:16

338

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Algebraic subset of $\mathbb C^n$ is finite if it is countable

Published on 14 Jul 2019 - 15:00

292

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Does complex conjugation commute with pull-backs?

Published on 29 Mar 2026 - 12:13

46

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Is $e^{(2i\ln b)}=(e^{\ln b})^{2i}=b^{2i}$ where $b$ is a real positive number?

Published on 15 Jul 2019 - 20:05

26

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Represent in the cartesian plane the inequality $|w-z|<1$ given $z$

Published on 15 Jul 2019 - 21:29

145

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Argument of $\operatorname{cis}(2π/7) + 1$ without a calculator?

Published on 16 Jul 2019 - 11:02

68

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Solve $(z-1)^3=9(\overline{z}-1)$

Published on 16 Jul 2019 - 13:44

156

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Why don't we have an intrinsic representation of complex numbers?

Published on 31 Mar 2026 - 18:53

113

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Solve the complex equation $w^3=9\overline{w}$

Published on 16 Jul 2019 - 15:18

81

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Position of P in Argand Plane

Published on 16 Jul 2019 - 19:03

129

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Find all complex numbers z, for which is $(\frac{(z - i - 1)}{(iz + 1)})^2$ real number?

Published on 17 Jul 2019 - 10:49

183

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Simplify $\left[ 2 \cos \left( \frac{\pi}{2n} \right) \right]^n$

Published on 17 Jul 2019 - 11:08

List Question

Geometric interpretation of complex inner products

$A$ and $A^2$ have same characteristic polynomial

Riemann Zeta representation when $\operatorname{Re}(s)<0$

Quaternion differentiation following complex number example

Algebraic subset of $\mathbb C^n$ is finite if it is countable

Does complex conjugation commute with pull-backs?

Is $e^{(2i\ln b)}=(e^{\ln b})^{2i}=b^{2i}$ where $b$ is a real positive number?

Represent in the cartesian plane the inequality $|w-z|<1$ given $z$

Argument of $\operatorname{cis}(2π/7) + 1$ without a calculator?

Solve $(z-1)^3=9(\overline{z}-1)$

Why don't we have an intrinsic representation of complex numbers?

Solve the complex equation $w^3=9\overline{w}$

Position of P in Argand Plane

Find all complex numbers z, for which is $(\frac{(z - i - 1)}{(iz + 1)})^2$ real number?

Simplify $\left[ 2 \cos \left( \frac{\pi}{2n} \right) \right]^n$

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