List questions from complex-numbers

Published on 23 Oct 2018 - 20:46

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Finding real part of complex number in exponential form in fraction

Published on 23 Oct 2018 - 21:15

55

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Why do products simplify?

Published on 23 Oct 2018 - 22:14

47

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How to calculate $\lim_{z \rightarrow (3 -2i)} f(z) = \overline z - 3 re(z) + i $?

Published on 23 Oct 2018 - 22:18

121

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Solving $z^{1+i}=4$.

Published on 24 Oct 2018 - 6:08

44

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Show that $|z|=1$ implies $|w|=1$

Published on 24 Oct 2018 - 10:14

130

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Show that the equation $b(z+\bar z)+\bar b(\bar z-z)+a=0$ represents two straight lines in the complex plane

Published on 24 Oct 2018 - 12:01

386

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$p$-th power roots of unity: why $p$ prime?

Published on 24 Oct 2018 - 13:18

44

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Follow on Number Theory Conjecture from previously posted unanswered problem

Published on 24 Oct 2018 - 14:37

53

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Complex differential Equations

Published on 24 Oct 2018 - 19:30

1.8k

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Help understanding the complex matrix representation of quaternions

Published on 25 Mar 2026 - 9:24

124

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$z$ on the unit circle, how many parts does $z \to e^z$ have?

Published on 25 Mar 2026 - 3:07

128

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Equal absolute values of roots of Quadratic equation

Published on 01 Apr 2026 - 7:58

52

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Basic formula manipulation related with Legendre symbol

Published on 25 Oct 2018 - 8:30

1.4k

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show that the function $f(z)=Arg(iz)$ is discontinuous at the point $z_0=i$.

Published on 25 Oct 2018 - 13:49

List Question

How to prove $\lim_{z \rightarrow 1} \frac{2z + 1}{z + 2}=1.$

Finding real part of complex number in exponential form in fraction

Why do products simplify?

How to calculate $\lim_{z \rightarrow (3 -2i)} f(z) = \overline z - 3 re(z) + i $?

Solving $z^{1+i}=4$.

Show that $|z|=1$ implies $|w|=1$

Show that the equation $b(z+\bar z)+\bar b(\bar z-z)+a=0$ represents two straight lines in the complex plane

$p$-th power roots of unity: why $p$ prime?

Follow on Number Theory Conjecture from previously posted unanswered problem

Complex differential Equations

Help understanding the complex matrix representation of quaternions

$z$ on the unit circle, how many parts does $z \to e^z$ have?

Equal absolute values of roots of Quadratic equation

Basic formula manipulation related with Legendre symbol

show that the function $f(z)=Arg(iz)$ is discontinuous at the point $z_0=i$.

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