what is sigma notation and pi notation?

Question

^_^

easy...

Answer 1

I am going to assume that you are talking about the following:

n

∑ f(i)

i=k

This means the sum of f(i) for i=k to n. In other words, that expression equals f(k)+f(k+1)+f(k+2)+...+f(n-1)+f(n).



The "pi notation" that I think you must be talking about is this:



n

Π f(i)

i=k

This means the product of all of the f(i)'s from i=k to n. In other words, this expression equals:

f(k)*f(k+1)*...*f(n).

Clearly very similar to the sigma notation.

Answer 2

Pi Notation

Answer 3

A way to write a sum or product respectively of a sequence of terms determined by incrementing a variable inside an expression.



5

SIGMA ( i² ) = 1 + 4 + 9 + 16 + 25 = 55

i = 1

Answer 4

sigma is sum of

pi is the relationship of the circumference of a circle to its diameter

Answer 5

This sum has 4 words. (-a million)^a million* cos(pi) + (-a million)^2* cos(2pi)+ (-a million)^3* cos(3pi) +(-a million)^4* cos(4pi) -a million* -a million+ a million*a million +-a million*-a million +a million*a million =4 i'm hoping that's what you meant...if the cos is an element of the exponent, then it would be (-a million)^(-a million) + a million^a million +(-a million)^(-a million)+ a million^a million =0

Answer 6

sigma- Σ

pi- Π