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Computer graphics -- basic graphics algorithms Representation of points in raster graphics The screen coordinate system is in the upper left corner Address = (xmax xmin) [number of pixels per line] * (Y-Ymin) [number of lines] + (X-Xmin) [position in line] + base address Linear scan conversion algorithm Assumptions: uniform grid between pi ...

Original link: http://tecdat.cn/?p=24152What is PCR? (PCR = PCA + MLR)• PCR is a regression technique that processes many x variables • given Y and X data: • PCA on X matrix – define a new variable: principal component (score) • in multivariate linearity_ Return_ (_MLR_)   Some of these new variables are used ...

2021-11-04 swipe questions and punch in every day Force buckle - binary tree 102. Sequence traversal of binary tree and Sword finger Offer 32 - II. Print binary tree II from top to bottom To give you a binary tree, please return the node values obtained by traversing in sequence. (that is, access all nodes from left to right layer by layer). ...

Title: give two one-dimensional int arrays a and B. where: A is an ordered array with length m and elements in good order from small to large. B is an ordered array with length n and elements arranged from small to large. We hope to find the maximum k numbers from the A and B arrays. It is required to use as few comparisons as possible. Soluti ...

The topics are as follows: Give you a matrix of m x n, where the values are non negative integers, representing the height of each cell in the two-dimensional height map. Please calculate the maximum volume of rainwater that can be received by the shape in the map. Input: hightmap = [[1,4,3,1,3,2], [3,2,1,3,2,4], [2,3,3,2,3,1]] Output: 4 Expla ...

Original link: http://tecdat.cn/?p=24148Especially in economics / econometrics, modelers do not believe that their models can reflect reality. For example, the yield curve does not follow the three factor Nelson Siegel model, the relationship between stocks and their related factors is not linear, and the volatility does not follow the Garch(1, ...

catalogue 1. Distribution issues 2. Interval problem 3. The best time to buy stocks 4. Summary 1. Distribution issues Title Description: This kind of problem probably means that there are a group of children and a pile of biscuits. Each child is very hungry. If the size of the biscuit is greater than or equal to the child's hunger, ...

A basic union search set There are only two operations for the basic union query set, one is to find ancestors, and the other is to merge int find(int x) { if(x==pre[x]) return x; else return pre[x]=find(pre[x]); } void join(int x,int y) { pre[find(x)]=find(y); } Two weighted union search set   for weighted concurrent sear ...

Binary search basis 1. Preface In the past, I always felt that I had to go through all the concepts before I could start to brush the questions. I didn't know that practice was the shortcut to master knowledge, rather than forgetting to recite it. To learn knowledge, we need to settle down and go step by step, otherwise we will be punished fo ...

Welcome to my official account, reply to 001 Google programming specification.  O_o   >_<   o_O   O_o   ~_~   o_O   this paper analyzes and introduces darknet parse_network_cfg interface, which is a hard core, is mainly used to load the model structure and implement the operator.1. darknet data loading routine    Previous ...