Why some mathematicians think we should abandon pi
Briefly

Why some mathematicians think we should abandon pi
"Robert Palais's bold assertion that using 3.14159... as the fundamental constant of a circle is wrong has sparked a debate that continues to resonate within the mathematical community."
"Michael Hartl's The Tau Manifesto argues that tau is a more natural choice for the circle constant, emphasizing that the radius, not the diameter, defines a circle."
The ongoing debate about the circle constant centers on the preference for tau over pi. Mathematician Robert Palais initiated this discussion in 2001, claiming that using 3.14159... as the fundamental constant is incorrect. He argues that tau, which is twice the value of pi, is more appropriate since the radius defines a circle. This perspective has gained traction, particularly after Michael Hartl's 2010 publication of The Tau Manifesto, which outlines several reasons supporting tau's superiority in mathematical contexts.
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