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• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础

## 物理代写|计算物理代写Computational Physics代考|Taylor Series

Brook Taylor was an English mathematician born in 1685 who devised an extremely useful way of approximating a function, the Taylor series expansion. This series expansion is arguably one of the most useful in mathematics and certainly within numerical analysis and will play a major role in much of the subject matter contained in this book.

The Taylor series is a mathematical technique for expressing a (potentially) complicated function in the form of a polynomial. The polynomial will have a similar value to the approximated function at least in some small neighborhood of a particular point. More precisely, a Taylor series is an infinite sum of power terms that represent a function at a single point. The summation terms are calculated from the values of the function’s derivatives at that point. Mathematically we write
\begin{aligned} f(x)=& f(a)+(x-a) f^{\prime}(a)+\frac{(x-a)^2}{2 !} f^{\prime \prime}(a)+\cdots \ &+\frac{(x-a)^{n-1}}{(n-1) !} f^{(n-1)}(a)+\frac{(x-a)^n}{n !} f^n(\xi) \end{aligned}
where $a$ is some point on $x$ and we have used the notation that
$$f^{\prime}(x)=\frac{d f}{d x} .$$
The last term in Equation (2.1) is the remainder or the error in the approximation where $a \leq \xi \leq x$.

## 物理代写|计算物理代写Computational Physics代考|Matrices: A Brief Overview

Matrices are incredibly important structures within mathematics, and thus within physics also. A very brief overview of their form and function were described in this section.

A matrix is an array of numbers. The dimensions of a matrix specify the number of rows and the number of columns the matrix has, in that order. Hence, when we say an $n$-by-m matrix we imply it has $n$ rows and $m$ columns. Vectors are essentially matrices of dimension $n$-by- 1 , for instance, a point in three-dimensional space is represented by a 3-by-1 matrix, normally referred to as a position vector. When $n=m$ we have a square matrix; these occur often when solving problems in physics.

When writing an algebra for matrices the notation is conventionally an uppercase letter for the entire matrix, and the corresponding lowercase letter for its elements. The elements also come with numbered subscripts to denote their position within the matrix, row index first. For example, the element found in the first row and the first column of matrix $A$ would be denoted $a_{11}$, whereas element $a_{34}$ is located at the third row and fourth column of $A$. In general element $a_{i j}$ is found in the $i$ th row and the $j$ th column of the matrix $A$. Note that the numbering starts from one.

# 计算物理代考

## 物理代写|计算物理代写Computational Physics代考|泰勒级数

\begin{aligned} f(x)=& f(a)+(x-a) f^{\prime}(a)+\frac{(x-a)^2}{2 !} f^{\prime \prime}(a)+\cdots \ &+\frac{(x-a)^{n-1}}{(n-1) !} f^{(n-1)}(a)+\frac{(x-a)^n}{n !} f^n(\xi) \end{aligned}
，其中$a$是$x$上的某个点，我们使用了
$$f^{\prime}(x)=\frac{d f}{d x} .$$

## 有限元方法代写

assignmentutor™作为专业的留学生服务机构，多年来已为美国、英国、加拿大、澳洲等留学热门地的学生提供专业的学术服务，包括但不限于Essay代写，Assignment代写，Dissertation代写，Report代写，小组作业代写，Proposal代写，Paper代写，Presentation代写，计算机作业代写，论文修改和润色，网课代做，exam代考等等。写作范围涵盖高中，本科，研究生等海外留学全阶段，辐射金融，经济学，会计学，审计学，管理学等全球99%专业科目。写作团队既有专业英语母语作者，也有海外名校硕博留学生，每位写作老师都拥有过硬的语言能力，专业的学科背景和学术写作经验。我们承诺100%原创，100%专业，100%准时，100%满意。

## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。

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