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Notation Table
| C | Number of Clusters |
| N | Number of Observations |
| P | Number of dimensions |
| X | Observations in RN×P as {x1, x2, x3, …, xN} |
| U | Membership matrix |
| uij | Membership value of ith point in jth cluster |
| dij | Distance from ith point to jth Centroid |
| V | Vector of Centroids v1, v2, …, vC |
| i | index of ith point |
| j, k | Index of jth or kth Centroid |
| r | Iteration |
| m | Fuziffier |
| ε | Iteration termination criterion |
