Nu is the symbol for frequency, which looks like a lowercase v.
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The symbol for pi (π), is the Greek letter that is the equivalent to the Roman p. It is the Greek letter pi. It is the first letter of the Greek word περίμετρος (perimetros) from which our word perimeter comes.
Yes.
PI is the Latin name of the Greek letter(by Greek letter I mean the PI symbol.
The Greek letter theta
Pi is a letter in the Greek alphabet. It has been represented by the Greek letter "π" since the mid-18th century