Capital Pi - xfohv
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Phi Π: Greetings. , welcome to my classroom, where i teach you all about summation and the value of all constants, like pi and tau, tau is just pi x 2, so if your looking to write it down on a formula. Write it like this.
π x 2 = n
Oh but for my formula, its like this.
For example, 7 x 5 x 9, write it like this.
$\prod_{k=1}^3 k = 7 \cdot 5 \cdot 9 = 315$
This is equivalent to multiplying the numbers together in the order they are written:
$7 \cdot 5 \cdot 9 = 315$