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Topic: Pinaise, j'ai refait des maths. ça faisait tout bizarre, j'étais rouillé
Posted by: Tandyys at jeu. 12 mars 2015 23:44:06
Keywords: Oui ben quoi, moi je suis old school, je ne poste pas sur facebook, je poste sur le Panda!
Message:

Je me suis fait avoir par le piège le plus classique du monde : un ami m'a posé une question, et au lieu de lui répondre "ça me saoule", ben j'ai commencé à écrire des formules sur une feuille. L'accident bête...

On m'a demandé de calculer l'écart moyen en ratio de temps de mouvement, dans un déplacement sur une carte quadrillée (genre jeu de plateau) entre un déplacement en ligne direct, et de case en case dans un quadrillage, selon qu'il est carré (on peut aller en diagonale), carré (sans diagonal) ou hexagonal. Du coup, pour faire les moyennes, je me suis retapé des intégrales trigonométriques, rhaaa!!

Ben pour ceux que ça interesse (je sais, je sais...), logiquement, si on peut sauter en diagonale, on va "plus vite" que dans un mouvement normal (en moyenne on effectue environ 90% du trajet seulement et "pif", on est arrivé par magie), sinon on va moins vite, et l'hexa est plus efficace (104%) que le carré (112%).

Fantastique, non?



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