本文是數學assignment代寫范文，題目是“Types of Mathematics and Engineering(數學和工程的類型)”，工程學這個詞沒有正確的定義。每個人都有不同的想法，所以有不同的定義，但最常用的工程定義是，這是科學在商業或工業中的實際應用。正如我們所知，科學家的工作是去了解，工程師的工作是去做，也就是說，工程師從科學中獲取知識來解決問題。工程也考慮成本、安全、性能和給定資源的限制。

Engineering is the word that does not have proper definition. Every person thinks with different point of view so create different definition but most commonly used definition of engineering is, this is the practical application of science to commerce or industry. As we know that the work of scientist is to know, the engineer to do i.e. the engineer brings the knowledge from science to solve the problems. Engineering also give account of costs, safety, performance and limitations of the given resources.

**Mathematics數學**

Mathematics is defined as the study of quantities and relations with the help of numbers and symbols. So, mathematics and engineering work together as they are right hand to each other because engineering uses mathematical operations in calculation of their projects. Mathematics is very famous in modern industry. So, mathematics is found in every sector of the job market as in engineering research, telecommunications, computer services and software, energy systems, computer manufacturers, aerospace and automotive, chemicals and pharmaceuticals, and government laboratories, among others.

數學被定義為借助數字和符號研究數量和關系的學科。因此，數學和工程是緊密聯系在一起的，因為工程在計算他們的項目時使用數學運算。數學在現代工業中很有名。因此，數學在就業市場的各個領域都有存在，比如工程研究、電信、計算機服務和軟件、能源系統、計算機制造商、航空航天和汽車、化工和制藥、政府實驗室等等。

Different types of mathematics

Geometry

Trigonometry

Calculus I and II

Linear Algebra

Differential Equations

Statistics.

1) Geometry:Geometry ( geo = earth, metria = measure) is a part of mathematics deals with the size, shape, relative position of figures and also includes solving of space. Geometry is one of the oldest sciences we use till now.

FIG; Representation of different shapes

2) Trigonometry: Algebra is the branch of mathematics concern with the study of rules of operations and the things constructed from them, including terms, polynomials, equations and algebraic structures. It works with the geometry, analysis, topology, combinatory, and number theory, algebra is the one of the most important part of the mathematics. Statements based on these variables are solved by using the rules of operations that apply to numbers, eg: multiply, subtraction, addition, etc.

FIG: A polynomial equation

3) Calculus: Calculus (It is a Latin word, calculus, a small stone used for counting) is a branch in mathematics works on limits, functions, derivatives, integrals and infinite series. This part of mathematics deals with a major part of modern mathematics education. It is divided into two major branches, differential calculus and integral calculus. It is the study of change occurs on the limits, same as that of geometry which is the study of shapes and algebra is the study of change, in the same way that geometry is the study of shape and algebra is the study of operations and their application to solving equations. Calculus is very much used in science, economics and engineering and can solve using calculus we can’t imagine its solution without calculus.

Differential Equations

Integral Calculus

4) Linear Algebra: Linear algebra is a branch of mathematics deals with the study of vectors, vector spaces (also called linear spaces), linear maps (also called linear transformations), and systems of linear equations. Vector spaces are the very important part in modern mathematics; thus, linear algebra is widely used in both abstract algebra and functional analysis.

5) Differential Equations: A differential equations are the mathematical equations for unknown functions of one or more variables that relate the values of the functions by itself and its derivatives. Differential equations play a very important role in physics, engineering, economics and other subjects of science.

Differential equations are use in almost every area of science and technology. Newton’s Laws also use differential equations which allow one to relate the position, velocity, acceleration and various forces acting on the body and state this relation as a differential equation for the unknown position of the body as a function of time.

6) Statistics: Statistics is the part of mathematics, as it is basically the science of making good and efficient use of numerical data related to groups of individual numeric. It basically deals with not only the collections, analysis and interpretations of the collected data, but also the planning of the collection of data.

Different types of engineering are:

Computer science engineering.

Chemical engineering.

Civil engineering.

Mechanical engineering.

Electrical engineering.

Aerospace engineering.

Electrochemical engineering.

Nuclear engineering.

Marine engineering.

Architectural engineering.

Environmental engineering.

Let us discuss them separately:

**1) Computer science engineering:計算機科學工程**

All computer programs do some form of counting as a small part of a task. Counting a hundred items does not take a long time, even without a computer but some computers may have to count a billion items or more. If the counting is not done efficiently, it may take days for a program to finish a report which may take few minutes to check. For example, when we want to find winning lottery ticket numbers of all lottery tickets. There are various techniques, and tools, etc. commonly used in software. Examples include:

所有的計算機程序都將某種形式的計數作為一項任務的一小部分。數100個項目并不需要很長時間，即使沒有計算機，但有些計算機可能需要數10億個或更多的項目。如果計數沒有有效地完成，程序可能要花幾天的時間來完成一份可能需要幾分鐘檢查的報告。例如，當我們想要找到所有彩票的中獎彩票號碼時。軟件中常用的技術、工具等多種多樣。例子包括:

Boolean Algebra

Object Oriented Programming

Data Structures (lists, sets, queues, stacks, etc.)

Algorithms (sorting, searching, traversing, etc.)

Relational Theory

Set Theory

Type Theory

The above examples are based on mathematical calculations.

**2) Chemical engineering:化學工程**

Mathematics is very useful in preparing various components of compounds, as compounds are made of different chemicals so addition of chemicals are properly measured and the quantity to be put are calculated by different mathematics forms, as follow:

Geometry

Trigonometry

Calculus I and II

Linear Algebra

Differential Equations

Statistics.

**3) Civil Engineering:土木工程**

Civil engineering also cannot move without mathematics as this engineering also includes various types of calculations for a work to be going on. For example: We must calculate how much strength a straight bar will bear (like a bridge) before breakage. How much weight can a cable of c amount of strands take before it pulls apart? The branch mathematics used in this engineering is as follow:

土木工程也離不開數學，因為這個工程還包括各種類型的計算工作。例如:我們必須計算出一根筆直的鋼筋(像橋一樣)在斷裂前能承受多大的強度。一根由c股組成的纜繩在斷裂前能承受多少重量?本工程采用的分支數學如下:

Geometry

Differential Equations

Relational Theory

Statistics.

**4) Mechanical engineering:**

The main work of mechanical industry is manufacture industrial machinery, consumer products, and etc. They may make sketches and rough layouts, record and analyze data, make calculations and estimates and all the above things need mathematics. This engineering also includes topics as thermodynamics, heat transfer, fluid mechanics, machine design and mechanics of materials, manufacturing, system dynamics, numerical modeling, vibrations, turbo machinery, combustion, heating, ventilating, and air conditioning which also needs physics which is based on math. The different forms of mathematics which mechanical engineering want are as follows:

Calculus 1. 2. and 3

Linear Algebra

Differential Equations.

**5) Electrical engineering:電氣工廠**

Mathematics is also very helpful in electrical engineering. As preparation of circuits consist of many calculations if we want efficient circuit to be placed. Mathematics is helpful as follows:

a) Modeling and study of electric circuits using mathematical differential equations of first, second and higher orders.

b) The design of system such as filters using Laplace and Z transforms.

c) Electrical applications for motion using special equations.

So, this engineering follows following branches of mathematics:

Arithmetic

Algebra

Geometry

Calculus

Differential equations

Complex analysis

Probability and statistics.

For example: 5 gauge wires can carry an amount of current, with a loss of b over c distance. How much wire of that size can we have to lay before we lose too much current for specific circuit?

**6) Aerospace engineering:航空航天工程**

The aerospace engineering is for manufacturing and maintenance of aircraft and space vehicles. This engineering uses computer and communication systems. So, this engineering includes all the branches of math which are included in computer engineering and mechanical engineering. They are:

航空航天工程是制造和維護飛機和空間飛行器。這項工程使用計算機和通信系統。所以，這個工程包括了計算機工程和機械工程中包含的所有數學分支。它們是:

Calculus 1.2.3

Linear Algebra

Differential Equations.

**7) Electrochemical Engineering:**

The electrochemical engineering is the engineering which is the combination of both electrical as well as chemical engineering. So, this engineering also needs various operations and calculations for production of various components used in different products.

**8) Nuclear engineering:**

The nuclear industry consist of various tasks such as production, handling, and use of nuclear fuel and the safe disposal of waste produced by the generation of nuclear energy To be a nuclear engineer a person need to have proper knowledge of physics, computer, chemistry and mathematics so, in short a person should have proper knowledge of all fields of science including mathematics.

**9) Marine Engineering:**

As we know that this engineering is related to Ships sailing in the oceans and seas. Ships has to find their way in the water by measuring the directions as there are no mile stones in water as on land. To find out the direction lots of calculations has to be done which need mathematics. The location of the ship is finding out by use of mathematics with combination of physics.

**10) Architectural Engineering:建筑工程**

Architectural Engineering is a type pf engineering which is used to construct, plan and design of buildings and other structures. So, these work can’t be completed without using calculations and calculations use mathematics. Suppose if an engineer has to design bridge it ahs to do various calculations, we do have formula for calculating strength of bridge

建筑工程是一種用于建筑和其他結構的建造、規劃和設計的工程。所以，這些工作不使用計算是無法完成的，而計算使用數學。假設一個工程師要設計橋梁，需要進行各種計算，我們確實有計算橋梁強度的公式。

S=C(1-e^-kt)

Where S=strength of bridge

C=Constant

k=Constant

t=time

**11) Environmental Engineering:環境工程**

This engineering is related to the developing methods and devices used in controlling, preventing the environmental disasters. In this the scientist and environmental engineers check and develop equipment related to air pollution and recycling of waste products. Water is also inspected and water treatments are also developed. The all above mention work need lots and lots of mathematical calculations. As inspection of various environmental disasters need calculation and there remedies also don’t go without calculations. So, again mathematics is used here.

本工程涉及控制、預防環境災害的開發方法和設備。在這個過程中，科學家和環境工程師檢查和開發與空氣污染和廢物回收有關的設備。水也被檢查和水處理也被開發。上述工作需要大量的數學計算。各種環境災害的排查都需要算計，補救措施也離不開算計。這里又用到了數學。

**Conclusion結論**

So, from our above discussion we concluded that engineering is very broad branch and mathematics plays a very important role in it. As I had already discussed the use of mathematics in engineering. We have to do calculations in almost every engineering to some or large extend.

因此，從我們上面的討論，我們得出工程是非常廣泛的分支和數學發揮了非常重要的作用。我已經討論過數學在工程中的應用。我們幾乎在每個工程中都要進行計算。

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