# negative indices

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### Floating point numbers (IEEE 754)

Http://www.cnblogs.com/kingwolfofsky/archive/2011/07/21/2112299.html floating point numbers 1. What are floating point numbers In the process of computer system development, several methods have been proposed to express real numbers. Typically, for

### Usage of itertools module in Python

This article mainly introduces the use of the itertools module in Python, describes the usage of common functions in the itertools module in detail, and provides examples to help you gain a deep understanding of Python program design, for more

### OpenGL ES tutorial II: Create a polygon)

OpenGL ES Tutorial for Android-Part II-Building a polygon December 4th, 2009 by Per-Erik Bergman-Android,Embedded   Previous tutorial was all about setting up the GLSurfaceView. Be sureRead it beacuse it's a really importent one to be able to

### Numbers, cardinality and representations

Numbers, cardinality and representations integerIntegers are these familiar numbers ...,-1, 0, +1, +2, .... Integer values are also referred to as ' complete ' and are divided into positive numbers (1 to infinity), negative numbers (-1 to

### Processing vertices-create a Terrain Based on a vertex buffer and an index Buffer

Problem Based on a 2D height chart, you want to create a terrain and draw it in an efficient way. Solution First, you need a height chart that contains all the height data used to define the terrain. This height chart has a fixed number of

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### WebGL Introductory Tutorial 1th--Six colors cubic

WebGL Introductory Tutorial 1th--Six colors cubicWebGL, a technique that allows developers to manipulate the GPU in a browser to display graphics. Let's go into the world of WebGL together.Reader ObjectThis series is suitable for developers who have

### Fluent Python:slice

The sequence type in Pyhton supports slicing functions, such as list:>>> numbers = [1, 2, 3, 4, 5]>>> numbers[1:3[2, 3]A tuple is also a sequence type and also supports slices.(a) Can we make the custom type support slicing?Creating a fully

### Vernacular spatial Statistics 14: Clustering of high/low values (upper)

From the last 0 hypothesis, we all know that we have to go into all sorts of magical statistical theory stages, but because of the Wu Dao, I try not to write the official flavor of the white paper.today we're going to talk about an advanced measure

### NumPy Ufunc operation

The method of Ufunc operation broadcast Ufunc References Ufunc Operations Ufunc is the abbreviation for universal function, which is an operation of each element of an array. Many of the Ufunc functions built into the NumPy are implemented at the C

### Python Data Analysis Basics Tutorial: NumPy Learning Guide __python

Chapter II NumPy Foundation 2.6 Changing the dimension of an array Ravel (), flatten () flatten multidimensional arraysB.transpose () matrix transpose, equivalent to B. T, one-dimensional arrays are invariant reshape () changing the array dimension

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