It looks zomething like a letter W being rotated 90 degrees right. any idea anyone?
2007-05-22 23:33:54 · 8 answers · asked by whatagowk 2 in Science & Mathematics ➔ Mathematics
Greek letter sigma
Σ is the symbol
means sum.
- - - - - - - - - - - s-
2007-05-23 00:32:31 · answer #1 · answered by SAMUEL D 7 · 1⤊ 0⤋
Do you mean this symbol â ?
If so it is used as a shorthand for adding up.
Example
5
â i² means 1² + 2² + 3² + 4² + 5²
¹
2007-05-23 07:06:39 · answer #2 · answered by fred 5 · 0⤊ 0⤋
It's sigma, it is a means to represent a sum. The bottom is usually where you start, and the top is how far you go, e.g.
5
-------
\
\
/ n
/
_____
n=1
means 1+2+3+4+5 (=15)
2007-05-23 06:40:31 · answer #3 · answered by supastremph 6 · 0⤊ 0⤋
The symbol is a Greek letter " epsillon" and commonly used to indicate a set.
2007-05-23 06:39:54 · answer #4 · answered by Swapan G 4 · 1⤊ 0⤋
I think you may mean Sigma.
This is used in summations, series.
Or, you may mean the 'element' symbol ... it means 'is an element of' ... it is at the second link below.
The last link is a whole page of different symbols you can browse through.
Hope you found what you were looking for.
2007-05-23 06:36:43 · answer #5 · answered by suesysgoddess 6 · 2⤊ 0⤋
This is a Sigma it means the SUM OF the equation.
Hope this helps.
2007-05-23 06:37:45 · answer #6 · answered by cpu_droideka 1 · 1⤊ 0⤋
sigma or sum
2007-05-23 07:42:15 · answer #7 · answered by sam 3 · 0⤊ 0⤋
it means the sum of b1, b2, b3....
2007-05-23 07:36:34 · answer #8 · answered by nildo 1 · 0⤊ 0⤋