Black Bullet

Har, preparing with assignment and my semester examination, i totally out of time to update my blog. Now is the time for me to update my blog. The first post is about the anime that I chasing now is Black Bullet！ WOW, at first just thought it was a normal anime which fight against monster however in there also got some love that carried out by the author through main character. I like it. Hope you people <3 it also. XD
Black Bullet


评论

发表评论

此博客中的热门博文

det (2A) = 2 det(A) is it true?

图片
det (2A) = 2 det(A) Prove it is true or false. So from above we can see tat the statement is false. However ....... matrix 1x1, [9] Although the general equation is false, but in matrix 1x1 with specific example have proven that the statement is true. So we can conclude that the statement is sometime false.
阅读全文

爸爸

爸爸，他的手掌有点粗，每天都皱着眉头，拖着疲惫的身躯，每天早出努力赚钱，每天晚归结束一天的活。他从来不埋怨， 可是家里的小孩却常常埋怨 ， 讨厌他那凶恶的脸 ， 讨厌他那么的严厉管教，讨厌他那么的忙。 爸爸，对不起。我们却从来都没为你着想你是那么的累。妈妈在家里选择了温柔的角色所以你只能选择那厉害的角色。在严厉的管教背后不知你为我们流了多少泪，有多么的心痛，多么地心疼当他将手上的藤编挥向我们，教育我们。 爸爸，我错了，我不应该对你大吼大叫，不应该埋怨你为我取的名字，不应该讨厌你每一次就只骂我打我。长大了，我才知道你以往所做的一切都是为了我好。我一点都不谅解你的良苦用心。 爸爸，对不起，我爱你。
阅读全文

Prove that If det (A) = 1 and all entry (entries) in A is an integer, then all income in A ^ (- 1) is also an integer.

图片
If det (A) = 1 and all entry (entries) in A is an integer, then all income in A ^ (- 1) is also an integer. Ans: By using the adjoint method to find the inverse of a matrix, we know that A ^ (- 1) = 1 / | A | (adj (A)) and if det (A) = 1 then, A ^ (- 1) = adj (A). The next step is to compute the adjoint matrix of cofactors and cofactor do tansposisi the matrix in which all entry (entries) in A are integers will cause cofactor searched, they also are in the form of an integer. Therefore, all proceeds in A ^ (- 1) is also an integer where A ^ (- 1) = adj (A) after adj (A) is an integer. In short, if det (A) = 1 and all entry (entries) in A is an integer, then all income in A ^ (- 1) is an integer also been proved.
阅读全文