inverse of square root function

Although you may not have thought about this problem at ordinary times, it's not that easy to say that it's just like "getting a gun in front of a while, it's not that simple, we use the binary method to test the number of squares in the middle of

In quakeiiiSource codeThere is a function for finding inverse square root (that is, 1/SQRT (x,Implemented by CarmackAlgorithmSome CPUs are 4 times faster than normal (float) (1.0/SQRT (x! (SQRT (x) in the above expression is still calculated by

Tricks efficient BP (inverse propagation algorithm) in neural network trainingTricks efficient BP(inverse propagation algorithm) in neural network training[Email protected]Http://blog.csdn.net/zouxy09tricks! It's a word that's filled with mystery

PHP Math function Summary (classic worth collecting), PHP is worth collecting This paper summarizes and analyzes the mathematical operation function of PHP. Share to everyone for your reference, as follows: First, the common function

PackageCom.lei.duixiang; Public classexponentfunction {/*** Mathematical Operations class * 1. Trigonometric functions * 2. Exponential function * 3. Rounding function * 4. Take maximum, minimum, absolute value function *@paramargs*/ //1.

This paper summarizes and analyzes the PHP mathematical operation function. Share to everyone for your reference, specific as follows: First, the commonly used function description: Abs: Get absolute value. Acos: Gets the inverse cosine value.

1 absolute Value function abs (x) Cases: SQL query: ? 1 SELECT ABS ( -1), ABS (0), ABS (1) Execution results: 2 square root function sqrt (x) Cases: SQL query: ? 1 SELECT SQRT (4), SQRT (16)

Keywords: javascript function index math string date This article Reprinted from http://www.dreamdu.com/javascript/functions_reference/ JavaScript function index JavaScript Math objects and functionsJavaScript String objects and functionsJavaScript

    Chapter 1 Introduction 11.1 programming language Overview 11.1.1 machine language 11.1.2 assembly language 21.1.3 advanced language 21.1.4 C language 31.2 Advantages and Disadvantages of C language 41.2.1 advantages of C language 41.2.2

PHP 5Math function Introduction to PHP MathThe Math function can handle values in the range of integers and float. InstallationThe PHP Math function is part of the PHP core. These functions can be used without installation. PHP 5