[seqfan] Sense of Mathematics
zbi74583_boat at yahoo.co.jp
zbi74583_boat at yahoo.co.jp
Thu Oct 31 02:38:51 CET 2019
Hi Seqfans Does the word "Sense of Mathematics" exist ? I want to make it mean the analog of "Sense of humor" Two persons in different countries have different sense of Mathematics, like they have different sense of humor I suppose Mathematician's method of study depends on his sense of Mathematics I explain the different sense of Mathematics in Japanese culture I give you some examples
Ex_1 Traditional method to count your age Kazoe is integer K such that {This year number} - {Year of your birth} + 1 You are K years old in Kazoe , in this year from Jan 1 to Dec 31 , It has no relationship with your birth day , it is only related in your birth year
Ex_2 Street address In English you write as follows 0000 x town y city z prefecture v country The membership of sets is the following x e y e z e v where e is element The order is from lower set to higher set In Japanese we write as follows v country z prefecture y city x town 0000 The order is contrary If you search my town on map then you may search from higher set to lower set , so Japanese method is better Order of name is the same In Japanese Kohmoto Yasutoshi We write the set : my family at first and the element : me secondly How to recognize the set is different
Ex_3 Method to describe formula In English m multiplied by n equal k Multiply = "x" Equal = "=" So, you write m x n = k In Japanede m ni n o kakeru to k ni hitoshii Kakeru = "x" Hitoshii = "=" So, we write m n x k = It is Reverse Polish method When I read "m x n = k" I read "m n x k =" in my mind It is rather complicated Ordinary I read it like in English Then you must know how to describe the definition of AP in Japanese S(n) = S(m) = n + m where S is Sigma n S m S = , m S n m + = in Japanese
To be continued
Yasutoshi
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