# data[].attributes.body
Uppercase Greek Letter Sigma. Used to find sum/sequence of multiple terms in an equation.

# data[].attributes.body
Pascal's triangle
Expanding a binomial (all terms)
Finding a particular term in binomial expansion.

# data[].attributes.body
Used to find validity of mathematical statements. Used in three steps. Can be used for both series =/sum

# data[].attributes.body
Expand a series from sigma notation (plug in the first n value to the formula and keep increasing by 1).
Find a finite sum using calculator.
Find an infinite sum using formula  S=a1/(1-r)
Go from a series to the sigma notation.

# data[].attributes.body
Series proof.
Divisibility proof.
Use 3 steps of induction.
Show n=1 works.
Assume n=k works.
Show n=k+1 works.

# data[].attributes.body
On e^x problems, don't round along the way.

# data[].attributes.body
Get sigma on calculator for finite sums: Math button, then press Zero