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Mathematics is a branch of science that encompasses numbers, quantity, and space. Mathematics is divided into two categories: pure and applied mathematics. Pure mathematics, or theoretical mathematics, looks at numbers abstractly through the use of theorems and proofs that may not have any applications in the real world, but are carried out for the sake of knowledge itself. Applied mathematics, on the other hand, comprises calculations and equations done for other branches of science such as physics and engineering in order to solve specific problems.

Mathematics comprises many different branches, such as geometry (the study of points, lines, and shapes), algebra (the study of equations, using letters and other symbols to solve equations), and calculus (the study of functions and their derivatives and integrals). The most basic component of mathematics, however, is the manipulation of numbers through addition, subtraction, division, and multiplication.

Mathematics is used throughout most courses in the sciences, computer sciences, and engineering, and online mathematics courses can help you better understand branches of mathematics you will encounter such as geometry or calculus or teach you specific topics such as differential equations, algorithms, or non-linear geometry. Online mathematics courses are very beneficial for students of engineering, physics, chemistry, or other scientific or technical subjects that will require the extensive use of applied mathematics. However, you can also take an online mathematics class just to improve your logical and mathematical thinking, or to supplement college mathematics programs. Many online courses are taught by professional mathematicians working in academia, and can give you an idea of what a career in mathematics requires. .

You can take an online mathematics course in many different subjects, including college algebra, calculus, statistics, or trigonometry. Students of these online courses are taught to answer questions such as:

- What are the applications of calculus in the real world?
- How are differential equations constructed and solved?
- What are some of the most important mathematical theorems throughout history?
- How is the study of logic related to the study of mathematics?
- What kinds of software and other tools do mathematicians use?

Below you will find a list of online resources that will aid in your study of mathematics. These include videos, test materials, online textbooks, and lecture notes. These free courses will give you a solid introduction to several topics in mathematics and can help you review and better understand concepts you have already learned.

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This calculus course covers differentiation and integration of functions of one variable, and concludes with a brief discussion of infinite series. Calculus is fundamental to many scientific disciplines including physics, engineering, and economics.

This course, which is geared toward Freshmen, is an undergraduate seminar on mathematical problem solving. It is intended for students who enjoy solving challenging mathematical problems and who are interested in learning various techniques and background information useful for problem solving. Students in this course are expected to compete in a nationwide mathematics contest for undergraduates.

"This is an introductory course in Discrete Mathematics oriented toward Computer Science and Engineering. The course divides roughly into thirds: 1. Fundamental Concepts of Mathematics: Definitions, Proofs, Sets, Functions, Relations 2. Discrete Structures: Modular Arithmetic, Graphs, State Machines, Counting 3. Discrete Probability Theory A version of this course from a previous term was also taught as part of the Singapore-MIT Alliance (SMA) programme as course number SMA 5512 (Mathematics for Computer Science)."

This course is offered both to undergraduates (6.041) and graduates (6.431), but the assignments differ. 6.041/6.431 introduces students to the modeling, quantification, and analysis of uncertainty. Topics covered include: formulation and solution in sample space, random variables, transform techniques, simple random processes and their probability distributions, Markov processes, limit theorems, and elements of statistical inference.

This course covers vector and multi-variable calculus. It is the second semester in the freshman calculus sequence. Topics include Vectors and Matrices, Partial Derivatives, Double and Triple Integrals, and Vector Calculus in 2 and 3-space.

This course is for students in arts and letters, architecture, or business. It studies basic calculus as part of a liberal education. It emphasizes conceptual learning and stresses the connections between mathematics and modern society. Topics include functions, limits, derivatives, and an introduction to integral, with interesting real-life applications throughout. Students are familiarized with the many different interpretations of the derivative as a rate of change, and the integral as a total rate of change. This enables them to learn and practice modeling in a variety of situations from economics the social and the life sciences.

In this course you will learn how to use calculus to understand and model real life situations such as those in business, environmental changes, population growth to name a few. As expected, real life situations are in general very complicated and are difficult to model but with the mathematics in this course we can understand some of the more basic models.

The subject of enumerative combinatorics deals with counting the number of elements of a finite set. For instance, the number of ways to write a positive integer n as a sum of positive integers, taking order into account, is 2n-1. We will be concerned primarily with bijective proofs, i.e., showing that two sets have the same number of elements by exhibiting a bijection (one-to-one correspondence) between them. This is a subject which requires little mathematical background to reach the frontiers of current research. Students will therefore have the opportunity to do original research. It might be necessary to limit enrollment.