Editing Neighbor joining (section)

=== Distance of the other taxa from the new node ===
For each taxon not considered in the previous step, we calculate the distance to the new node as follows:

{{NumBlk|:|  <math>d(u,k)=\frac{1}{2} [d(f,k)+d(g,k)-d(f,g)]</math> |{{EquationRef|3}}}}

where <math>u</math> is the new node, <math>k</math> is the node which we want to calculate the distance to and <math>f</math> and <math>g</math> are the members of the pair just joined.