Summation

Properties of Summation

1. Multiplying by a constant $\sum _{i=m}^{n}c{x}_i=c\sum _{i=m}^n{x}_i$
2. Adding two sums and extracting two sums
3. Changing the bounds of the index of summation (wtf)

Summation Formulas

Formulas that are useful for efficient evaluation & used in assignments:

Related topics

• MATH239 - Introduction to Combinatorics
• CS240 - Data Structure and Data Management