If true, the following conjecture of Thomassen [Th81] is a planarity criterion for a special class of graphs that involves only K 5. Recall that a planar graph on n vertices contains at most 3n-6 ...

Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.

Caroline Banton has 6+ years of experience as a writer of business and finance articles. She also writes biographies for Story Terrace. David Kindness is a Certified Public Accountant (CPA) and an ...

Jigsaw puzzles help make mathematics learning more active and fun Holidays bring celebration, rest and, for many families, long stretches of indoor time. For some, this means tabletop games quickly ...