digits of pi in a spiral
33508
Text spirals with TikZ
83290
How is the value of $\pi$ ( Pi ) actually calculated?
65300
Why is $\pi$ irrational?
7134
Confusion related to calculation of pi
138355
Improper rational/trig integral comes out to $\pi/e$
13592
How can $\pi$ be irrational if it can be calculated using an infinite series of rational numbers?
147410
ArcTan(2) a rational multiple of $\pi$?
128763
How to plot a spiral on a plane?
128098
Decimal Expansion of Pi
3514
reversing digits and squaring
118374
Is there a proof that $\pi$ is an irrational number?
53152
Find a circle's radius with three known tangent lines
23705
Does $\pi$ contain all possible number combinations?
133186
Understanding the "$\pi$" of a rotating disk
72437
Sum of the digits of a perfect square
126040
Geometric explanation of $\sqrt 2 + \sqrt 3 \approx \pi$
148535
Finding the "triangular root" of a number.