The constant pi is well known. The constant phi is less well known, but typically refers to the golden ratio ((1+sqrt(5))/2). Or is used for an angle variable, especially with spherical coordinates. As a potential new user, I find the use of phi to mean the constant pi to be rather confusing.
The constant pi is well known. The constant phi is less well known, but typically refers to the golden ratio ((1+sqrt(5))/2). Or is used for an angle variable, especially with spherical coordinates. As a potential new user, I find the use of phi to mean the constant pi to be rather confusing.