Summation
What does \sum^n_{r=1} r^2 mean?
- We start our
r ‘counter’ at1 - Each time, we increase
r by1 until we reachn . - We include
r=n - For each value of
r , we calculater^2 - Finally, we add all those
r^2 values together.
That’s what the
\sum symbol means!
Write \frac12+\frac13+\frac14+\frac15+\frac16 using sigma notation
Write \frac12+\frac14+\frac18+\frac1{16}+\frac1{32} using sigma notation
flashcards
| Question | Answer |
|---|---|
| What does | A sum where the counter |
| Write | |
| Write |