What does sigma means in mathematics?

Answer 1

sigma is the short for sums

for example, lets say you want to add 1+2+3+4+5+6.................+99+100

it's a problem writing every single term, right?

so if the sum it's a pattern like the example above, you can write it in sigma notation

search it up on the internet and find some simple examples because i am not the best explainer in the world

=)

**Sigma is also used in statistics to mean "standard deviation."