Sigma Basically means the sum of something For Example: (sigma)F=ma This means the sum of the force acting on the object is equal to the mass multiplied by the acceleration!
its not a word its a greek letter
sideways M in physics is the greek letter sigma which means sum. other m's can mean mass those are the only m's i know of.
I would type it but I don't have the energy.
The Greek capital letter for Sigma is Σ.
The Greek letter /, /, or / (English S, or s). It originally had the form of the English C.
Sigma is actually the letter S in the Greek alphabet and can mean anything that begins with the letter S.
Tau
"S" Sigma is the name of the 18th letter of the Greek alphabet.
C
C
There are three sigma symbols, an upper case, a lower case and an end of the sentence case. The capital letter case is used as summation. The lower case is used to represent variance in statistics. The lower case is also used to represent stress in mechanics and physics. The end of sentence case is generally not used. Reference link: http://en.wikipedia.org/wiki/Sigma.
Rho