How to find the radius of convergence
| Input |
|---|
| convergence conditions | sum_n^infinity x^n |
| Interval of convergence |
| {x: abs(x)<1} |
| Inequality plot |
| | | abs(x) | 1 |
| Alternate form assuming x is positive |
| x<1 |
| Alternate form assuming x is real |
| sqrt(x^2)<1 |
| Solution |
| -1 |
| Integer solution |
| x = 0 |