Question

A cute little system of nonlinear PDEs

score 73 · Answer 1 · 2026-04-16 07:22:00

73

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A cute little system of nonlinear PDEs

Published on 16 Apr 2026 - 7:22

score 4.1k · Answer 2 · 2026-04-14 23:14:04

4.1k

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Find solution of equation $(z+1)^5=z^5$

Published on 14 Apr 2026 - 23:14

score 151 · Answer 3 · 2026-04-16 06:06:02

151

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If the sum of absolute values of complex numbers is at least $1$, then some subset of these numbers has absolute value at least $C$

Published on 16 Apr 2026 - 6:06

score 515 · Answer 4 · 2026-04-11 07:39:18

515

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Square root of complex number?

Published on 11 Apr 2026 - 7:39

score 496 · Answer 5 · 2026-04-16 11:23:32

496

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Ring homomorphism $f: \mathbb C \to \mathbb C$ such that $f(\mathbb R) \subset \mathbb R$

Published on 16 Apr 2026 - 11:23

score 2.2k · Answer 6 · 2026-04-10 03:43:51

2.2k

Views

Quadratic formula with complex coefficients

Published on 10 Apr 2026 - 3:43

score 102 · Answer 7 · 2026-04-16 15:04:28

102

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How find this $a$ such $(z_{1}+a)^2+a\overline{z_{1}}\neq (z_{2}+a)^2+a\overline{z_{2}}$

Published on 16 Apr 2026 - 15:04

score 338 · Answer 8 · 2026-04-08 11:16:46

338

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How many roots have a complex number with irrational exponent?

Published on 08 Apr 2026 - 11:16

score 709 · Answer 9 · 2026-04-16 14:27:33

709

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The annulus $A_{r,s}(z_0)=\{z\in \mathbb{C} \mid r<|z_0-z|< s\}$ is open

Published on 16 Apr 2026 - 14:27

score 33 · Answer 10 · 2026-04-15 16:37:12

33

Views

Prove that $|z||b-ad| \leq M $

Published on 15 Apr 2026 - 16:37

score 1.3k · Answer 11 · 2026-04-14 16:36:25

1.3k

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How can the polar form of a complex number be$ r(\cos(x)-i\sin(x))$?

Published on 14 Apr 2026 - 16:36

score 1.2k · Answer 12 · 2026-04-08 23:12:52

1.2k

Views

How do you divide complex numbers in polar form?

Published on 08 Apr 2026 - 23:12

score 127 · Answer 13 · 2026-04-16 06:29:44

127

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Definition of $z^0, z=a+bi, a,b \in \mathbb{R}, z \neq 0$

Published on 16 Apr 2026 - 6:29

score 457 · Answer 14 · 2026-04-13 14:04:08

457

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Why has my prof worked out the multiplicative inverse of complex numbers this way?

Published on 13 Apr 2026 - 14:04

score 2.8k · Answer 15 · 2026-04-13 09:50:00

2.8k

Views

Proving Ptolemy Theorem using complex number

Published on 13 Apr 2026 - 9:50

List Question

A cute little system of nonlinear PDEs

Find solution of equation $(z+1)^5=z^5$

If the sum of absolute values of complex numbers is at least $1$, then some subset of these numbers has absolute value at least $C$

Square root of complex number?

Ring homomorphism $f: \mathbb C \to \mathbb C$ such that $f(\mathbb R) \subset \mathbb R$

Quadratic formula with complex coefficients

How find this $a$ such $(z_{1}+a)^2+a\overline{z_{1}}\neq (z_{2}+a)^2+a\overline{z_{2}}$

How many roots have a complex number with irrational exponent?

The annulus $A_{r,s}(z_0)=\{z\in \mathbb{C} \mid r<|z_0-z|< s\}$ is open

Prove that $|z||b-ad| \leq M $

How can the polar form of a complex number be$ r(\cos(x)-i\sin(x))$?

How do you divide complex numbers in polar form?

Definition of $z^0, z=a+bi, a,b \in \mathbb{R}, z \neq 0$

Why has my prof worked out the multiplicative inverse of complex numbers this way?

Proving Ptolemy Theorem using complex number

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