The Square Root of -i
103987
What does the square root of minus $i$ equal?
34709
Complex numbers - roots of unity
47463
Converting sums of square-roots to nested square-roots
33184
Something strange about $\sqrt{ 4+ \sqrt{ 4 + \sqrt{ 4-x}}}=x$ and its friends
5526
Prove that $ℤ[i]^*= \{1,-1,i,-i\}$
144568
How closely can we estimate $\sum_{i=0}^n \sqrt{i}$
144042
On the functional square root of $x^2+1$
77486
What is the value of $i^i$?
111432
Square root of a number squared is equal to the absolute value of that number
77081
Proving square root of a square is the same as absolute value
83119
Compass-and-straightedge construction of the square root of a given line?
142768
Approximation of $\sqrt{2}$
106911
Square root of $-1$ in the ring $\mathbb{R}[x]/\langle(x^2+1)^2\rangle$
104075
Cube roots of the complex numbers 1+i?
152831
When does a complex matrix have a square root?
134377
The minimum number of digits after the floating-point, which uniquely identify every irrational square root
133852
What is the value of $i^{i^{i^\ldots}}$?