From here graph theory got expanded and generalized into ... The weight assigned to each node is the Euclidian distance, allowing the algorithm to calculate the distance of any newly discovered ...

In 1950 Edward Nelson, then a student at the University of Chicago, asked the kind of deceptively simple question that can give mathematicians fits for decades. Imagine, he said, a graph — a ...

Distance-time graphs show how the distance travelled by a moving object changes with time. These graphs also show if the object is moving at a constant speed or accelerating, going back to the ...