tau/2 is pi. tau is literally 2pi so that means tau/2. also, pi does not equal to sqrt(16/phi), but they share the same first 3 digits.

@@medkitty Nope, pi is equal to 4/sqrt(phi). You don't use BIASED trigonometric functions to claim pi as 3.14159265 when these digits are based on AREA of circle, NOT circumference

2π is equivalent to τ, therefore τ/2 does equal to π. And no, √(16/φ) doesn’t equal pi. And no, we are not basing π off of biased trigonometric functions. The definition of pi is supposed to be the circumference of a circle divided by the diameter of a circle. And yes, if you base it off of the area, you still get exactly 3.1415926535… Prove it if you’re still convinced that π = √(16/φ).