2007-04-09 10:53:35 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Σ = symbol. Meanins sum
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2007-04-09 11:25:08 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
Big sigma normally means sum (and its bad practice to use it for other things)
Sigma [1 to 3] r^2 = 1^2 + 2^2 + 3^2
little sigma is often used to denote standard deviation, but it can be used for anything.
2007-04-09 17:58:32 · answer #2 · answered by hustolemyname 6 · 0⤊ 0⤋
Sigma relates to a summation property. Like Σ 1 to 100 is 5050.
2007-04-09 17:57:22 · answer #3 · answered by bourqueno77 4 · 0⤊ 0⤋
its a greek letter that is used to add up mathematical expressions [summations]. itll come in handy in 8th grade or 9th grade becasue it is a way of putting a mathematical equation. like sigma with a 5 over the top adn a k=1 at the bottom and a [3k+1] next to it means you add up all the values of 3k+1 using all the kz starting with 1 and ending w. 5
2007-04-09 18:03:14 · answer #4 · answered by xLA NENA . 3 · 0⤊ 0⤋
Sigma is a type of car or a letter of the greek alphabet
2007-04-09 17:57:32 · answer #5 · answered by Anonymous · 0⤊ 1⤋
sigma is a greek letter
looks like an E, it is usually used for summation
2007-04-09 17:59:46 · answer #6 · answered by leo 6 · 0⤊ 0⤋