# find value of variable

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### EM algorithm-When there is an implied variable, the maximum likelihood of using the gradient method can be used to guess the valueof the implied variable to find Max values

Excerpt from: https://www.zhihu.com/question/27976634Briefly, why use the EM algorithmNow there are 50 boys in a class, 50 girls, and boys stand left, girls stand right. We assume that the height of a boy is normally distributed and that the height

### DOS environment variable delay extension enabledelayedexpansion detailed _dos/bat

One, what is deferred environment variable extension? Delay variable Full name "Delay environment variable extension", to understand this thing, we have to understand what is called variable expansion!When we explain our command, CMD will first

### {PHP variable}

#一, PHP variable definition: Variables are used to store values, such as numbers, text strings or arrays, V: string/integer/double/array/object Naming rules: 1. The variable name of PHP is case-sensitive. 2. The variable name must begin with \$3,

### Knowledge of the. NET development environment, console program creation, output, input, definition variables, variable

First of all, thank Shanglikai for taking me into. NET, a good software development program. Through two days of learning in this area is also a lot of understanding, let us first understand the C # languageC # is a new, simple, secure, and fast

### Deep understanding of the JavaScript series (12) Variable object (Variable object) _javascript Tips

JavaScript programming always avoids the inevitable declaration of functions and variables to successfully build our system, but how and where do the interpreters look for these functions and variables? What exactly happened when we quoted these

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### [C language exploration journey] Part 1 Lesson 4 Chapter 2: Variable Declaration of the world of variables Chapter 2

[C language exploration journey] Part 1 Lesson 4 Chapter 2: Variable Declaration of the world of variables Chapter 2 Introduction 1. Course outline 2. Part 1 Lesson 4 Chapter 2: Variable Declaration of the world of Variables 3. Part 1 Lesson 4

### Analysis ofvariable reference and variable destruction mechanism in PHP, PHP destruction _php Tutorial

Analysis of variable reference and variable destruction mechanism in PHP, PHP destruction This paper analyzes the variable reference and the mechanism of variable destruction in PHP. Share to everyone for your reference. The specific analysis is as

### Ask how to find the smallest variable, not the smallest value.-php Tutorial

How can I find the smallest variable instead of the smallest value? how can I find the smallest variable instead of the smallest value? the location of the minimum value is also acceptable. For example: \$ a1; \$ b2; \$ c3; how can I find the smallest

### Analysis ofvariable reference and variable destruction mechanism in PHP _php techniques

In this paper, we analyze the mechanism of variable reference and variable destruction in PHP. Share to everyone for your reference. The specific analysis is as follows: Variable is a very important type in PHP, we have data through variables or

### Js to obtain the absolute valueof a variable. js to obtain the absolute valueof a variable.

Js to obtain the absolute value of a variable. js to obtain the absolute value of a variable. This article describes how to obtain the absolute value of a variable in js. Share it with you for your reference. The specific analysis is as follows:

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