Show that the inner product $$\bex \sef{x_1\wedge \cdots \wedge x_k,y_1\wedge \cdots\wedge y_k} \eex$$ is equal to the determinant of the $k\times k$ ...
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其他好文 时间:
2014-11-21 09:09:37
阅读次数:
225
Multivariable normal distribution is a positive definite matrix.
We can get (assume) Where
We do a simple transformation
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其他好文 时间:
2014-11-21 09:06:33
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181
在 Rajendra Bhatia 的 Matrix Analysis 中, Exercise I.5.8 说: Prove that for any matrices $A,B$ we have $$\bex |\per (AB)|^2\leq \per (AA^*)\cdot \per (B^*...
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其他好文 时间:
2014-11-21 09:06:12
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179
ProblemN*N matrix is given with input red or black.You can move horizontally, vertically or diagonally. If 3 consecutive samecolor found, that color w...
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其他好文 时间:
2014-11-21 06:56:50
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291
Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.For example,Givenn=3,You should return the following matri...
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其他好文 时间:
2014-11-20 23:21:17
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256
Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For example,Given the following matrix:[ [ 1, 2, 3 ],...
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其他好文 时间:
2014-11-20 21:42:11
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156
You are given an n x n 2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place? ...
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其他好文 时间:
2014-11-20 13:20:00
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289
较完整的描述了,向量的加减乘除,矩阵的乘法,矩阵的转置以及矩阵的逆矩阵...
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移动开发 时间:
2014-11-20 09:09:04
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917
给定一个只含0和1的数组,求含1的最大矩形面积。Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing all ones and return its area.这样的题一般看来都...
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其他好文 时间:
2014-11-19 23:44:02
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316
问题描述:
Write an efficient algorithm that searches for a value in an
m x n matrix. This matrix has the following properties:
Integers in each row are sorted from left to right.The first integer o...
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其他好文 时间:
2014-11-19 22:21:45
阅读次数:
171