![Example distance metric](https://georgepavlides.info/wp-content/uploads/2016/10/EuclideanDistanceGraphic.jpg)
In order to be a measure (distance) d must:
In order to be a metric (distance) d has to be a measure and:
…and here is the cheat sheet:
In order to be a measure (distance) d must:
In order to be a metric (distance) d has to be a measure and:
…and here is the cheat sheet: