List questions from complex-numbers

Published on 26 Mar 2026 - 2:52

34

Views

Complex numbers involving triangle ABC.

Published on 18 May 2019 - 20:54

38

Views

For $z \in \mathbb{C}$, the only point where the derivative for $f(z)=|z|^{2}$ exist is the origin.

Published on 19 May 2019 - 0:55

239

Views

How to prove De Moivre's theorem inductively

Published on 01 Apr 2026 - 9:30

129

Views

Trouble in mapping of möbius transformation

Published on 25 Mar 2026 - 12:29

31

Views

Subtraction in Complex Number Geometry

Published on 19 May 2019 - 15:43

159

Views

I attempted to visualize dot product of complex vectors. What do you advice?

Published on 25 Mar 2026 - 16:46

581

Views

complex numbers. help in proof that $e^{-it}=1/e^{it}$

Published on 01 Apr 2026 - 20:12

198

Views

ellipse in complex numbers

Published on 20 May 2019 - 19:48

194

Views

Not defining the imaginary number $i$ as the principal square root of $-1$.

Published on 02 Apr 2026 - 16:04

35

Views

Limit of a complex value function

Published on 21 May 2019 - 12:07

51

Views

Satisfying an inequality involving complex numbers

Published on 30 Mar 2026 - 13:37

799

Views

Partial derivative of the real part of a function

Published on 01 Apr 2026 - 14:29

77

Views

Is there a reason why a complex number to a power $n$ equals $r ^ n(\cos \theta+i\sin \theta)?$

Published on 21 May 2019 - 19:48

929

Views

Can we show a sum of symmetrical cosine values is zero by using roots of unity?

Published on 21 May 2019 - 21:01

List Question

Isomorphism between C and another ring

Complex numbers involving triangle ABC.

For $z \in \mathbb{C}$, the only point where the derivative for $f(z)=|z|^{2}$ exist is the origin.

How to prove De Moivre's theorem inductively

Trouble in mapping of möbius transformation

Subtraction in Complex Number Geometry

I attempted to visualize dot product of complex vectors. What do you advice?

complex numbers. help in proof that $e^{-it}=1/e^{it}$

ellipse in complex numbers

Not defining the imaginary number $i$ as the principal square root of $-1$.

Limit of a complex value function

Satisfying an inequality involving complex numbers

Partial derivative of the real part of a function

Is there a reason why a complex number to a power $n$ equals $r ^ n(\cos \theta+i\sin \theta)?$

Can we show a sum of symmetrical cosine values is zero by using roots of unity?

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