List questions from complex-numbers

Published on 10 Apr 2026 - 8:24

466

Views

Quadratic formula for $z^2 + (\alpha + \beta i)z + \gamma + i\delta = 0$ where $z\in\mathbb{C}$

Published on 15 Apr 2026 - 3:37

761

Views

Drawing complex numbers on an argand diagram

Published on 12 Apr 2026 - 2:43

50

Views

How to build $\mathbb{C}$

Published on 10 Apr 2026 - 12:57

1.5k

Views

Checking where the complex derivative of a function exists

Published on 11 Apr 2026 - 1:40

2.3k

Views

Derivative of a quadratic form

Published on 16 Apr 2026 - 20:47

4.5k

Views

Images of lines $y = k = \mbox{constant}$ under the mapping $w = \cos (z)$

Published on 16 Apr 2026 - 7:33

133

Views

How can $ i $ be distinguished from $ - i $?

Published on 10 Apr 2026 - 4:52

26

Views

Proving that and LC of solutions is still a solution

Published on 12 Apr 2026 - 23:48

637

Views

Finding modulus and argument of a complex number

Published on 12 Apr 2026 - 5:36

186

Views

How one can implement the equation with "$i$" in it?

Published on 09 Apr 2026 - 0:37

59

Views

Superfunctions with complex iteration indices: Interpretation

Published on 10 Apr 2026 - 5:48

252

Views

Find $(1+i)^i$ in simpler terms, without imaginary exponents.

Published on 10 Apr 2026 - 19:10

574

Views

plotting $\frac{-\pi}{2}<x<\frac{\pi}{2} $ and $ 0<y<1$ under mapping $w=\sin(z)$

Published on 16 Apr 2026 - 8:21

49

Views

proof that the expression is Real for any $z$

Published on 13 Apr 2026 - 6:20

List Question

Looking for proof of theorem on complex measurable functions

Quadratic formula for $z^2 + (\alpha + \beta i)z + \gamma + i\delta = 0$ where $z\in\mathbb{C}$

Drawing complex numbers on an argand diagram

How to build $\mathbb{C}$

Checking where the complex derivative of a function exists

Derivative of a quadratic form

Images of lines $y = k = \mbox{constant}$ under the mapping $w = \cos (z)$

How can $ i $ be distinguished from $ - i $?

Proving that and LC of solutions is still a solution

Finding modulus and argument of a complex number

How one can implement the equation with "$i$" in it?

Superfunctions with complex iteration indices: Interpretation

Find $(1+i)^i$ in simpler terms, without imaginary exponents.

plotting $\frac{-\pi}{2}<x<\frac{\pi}{2} $ and $ 0<y<1$ under mapping $w=\sin(z)$

proof that the expression is Real for any $z$

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