When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Bridge and torch problem - Wikipedia

    en.wikipedia.org/wiki/Bridge_and_torch_problem

    There is a narrow bridge, and it can only hold two people at a time. They have one torch and, because it's night, the torch has to be used when crossing the bridge. Person A can cross the bridge in 1 minute, B in 2 minutes, C in 5 minutes, and D in 8 minutes. When two people cross the bridge together, they must move at the slower person's pace.

  3. Seven Bridges of Königsberg - Wikipedia

    en.wikipedia.org/wiki/Seven_Bridges_of_Königsberg

    Next, Euler observed that (except at the endpoints of the walk), whenever one enters a vertex by a bridge, one leaves the vertex by a bridge. In other words, during any walk in the graph, the number of times one enters a non-terminal vertex equals the number of times one leaves it.

  4. Mathematical Bridge - Wikipedia

    en.wikipedia.org/wiki/Mathematical_Bridge

    The Mathematical Bridge is a wooden footbridge in the southwest of central Cambridge, England. It bridges the River Cam about one hundred feet northwest of Silver Street Bridge and connects two parts of Queens' College. Its official name is simply the Wooden Bridge [2] or Queens' Bridge. [3] It is a Grade II listed building. [1]

  5. Crossed ladders problem - Wikipedia

    en.wikipedia.org/wiki/Crossed_ladders_problem

    The value D is found in the solution as the real part of the difference in the squares of the complex coordinates of the two walls. The imaginary part = 2X a Y a = 2X b Y b (walls a and b). The short ladder in the complex solution in the 3, 2, 1 case appears to be tilted at 45 degrees, but actually slightly less with a tangent of 0.993.

  6. Topology - Wikipedia

    en.wikipedia.org/wiki/Topology

    A three-dimensional model of a figure-eight knot.The figure-eight knot is a prime knot and has an Alexander–Briggs notation of 4 1.. Topology (from the Greek words τόπος, 'place, location', and λόγος, 'study') is the branch of mathematics concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling ...

  7. Brownian bridge - Wikipedia

    en.wikipedia.org/wiki/Brownian_bridge

    Brownian motion, pinned at both ends. This represents a Brownian bridge. A Brownian bridge is a continuous-time gaussian process B(t) whose probability distribution is the conditional probability distribution of a standard Wiener process W(t) (a mathematical model of Brownian motion) subject to the condition (when standardized) that W(T) = 0, so that the process is pinned to the same value at ...

  8. Thousand Islands Bridge - Wikipedia

    en.wikipedia.org/wiki/Thousand_Islands_Bridge

    The Thousand Islands International Bridge system is a series of five bridges [3] spanning the St. Lawrence River. From south to north, they are: American mainland to Wellesley Island (main span [1]) Wellesley Island to Hill Island (international crossing) Hill Island to Constance Island; Constance Island to Georgina Island; Georgina Island to ...

  9. Cross-multiplication - Wikipedia

    en.wikipedia.org/wiki/Cross-multiplication

    Alternate solution ⁠ 90miles / 3hours ⁠ =30mph. So, 30mph×7hours=210miles. Note that even simple equations like = are solved using cross-multiplication, since the missing b term is implicitly equal to 1: =.