Question

What's the difference between π and Π ?!​

Answer 1

Answer:

Π : this symbol refers to capital pi

product of all values in range of series

pi : is the ratio between radius and circumference and diameter of a circle

Answer 2

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Succinctly, pi—which is written as the Greek letter for p, or π—is the ratio of the circumference of any circle to the diameter of that circle. Regardless of the circle's size, this ratio will always equal pi. In decimal form, the value of pi is approximately 3.14. ... Measure the circumference with a ruler.