Calculus. Join the increasing number of students enrolling in online college courses and start earning credits towards your degree.

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Ready to enroll in an online college or explore distance learning opportunities tailored to your goals? Since 2008, Academic Earth has worked diligently to compile an ever-growing collection of free online college courses from some of the most respected universities. Free e-books and e-lectures on Algorithms, Math, and Cryptography. Electrical Engineering and Computer Science. Math21b, Fall 2003, Linear Algebra and Differential Equations. Calculus - Exampleproblems. Math Help - SolveMyMath. The momentum representation. How to Calculate a Square Root by Hand: 21 steps (with pictures) Edit Article CalculatorUsing Prime FactorizationFinding Square Roots Manually Edited by NatK, Maluniu, Luís Miguel Armendáriz, Webster and 44 others In the days before calculators, students and professors alike had to calculate square roots by hand.

Several different methods have evolved for tackling this daunting process, some giving a rough approximation, others giving an exact value. To learn how to find a number's square root using only simple operations, see Step 1 below to get started. Ad Steps. Free Maths Video Lecture courses. Touch Mathematics.

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Soon, I will whip them into a more coherent form. In collegiate calculus, you probably learned about something called Taylor series. You can use Taylor series to make polynomial approximations of infinitely-differentiable functions. If you take the Taylor series out infinitely, you actually have the function. The general form for a Taylor series is this: ∑ f(n)(x0) * (x - x0)n / n! Where the sum goes from n=0 to n=infinity and f(n)(x0) means the n-th derivative of f(x) evaluated at x0. Also, note that f(0)(x) is just f(x). Graduate Program in Mathematics, Study guides for Comp Exams, University of Illinois at Urbana-Champaign. Demystifying the Natural Logarithm (ln) After understanding the exponential function, our next target is the natural logarithm.

Given how the natural log is described in math books, there’s little “natural” about it: it’s defined as the inverse of e^x, a strange enough exponent already. But there’s a fresh, intuitive explanation: The natural log gives you the time needed to reach a certain level of growth. Suppose you have an investment in gummy bears (who doesn’t?) With an interest rate of 100% per year, growing continuously. Main Page - Exampleproblems. Untitled. Two by Two. Essentially the technique converts the first factor into binary, multiplies each of its constituents by the second factor, and sums the results.

Imagine that each line is associated with a power of 2: the first line with 20, the second with 21,and so on. The business in the first column, halving the first factor successively and crossing out those lines with even numbers, effectively reduces the first factor to its binary constituents — here, the lines that remain are those associated with 20, 25, and 26, and, sure enough, 20 + 25 + 26 = 97. The Thirty Greatest Mathematicians. Color Theory 101. Weekly wanderings through higher math—from not so high a vantage point. Calculus. Intuitive Understanding Of Euler’s Formula. Euler's identity seems baffling: It emerges from a more general formula:

Geometry. The word geometry is Greek for geos - meaning earth and metron - meaning measure.

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Escher Contents. Learning Calculus: Overcoming Our Artificial Need for Precision. Accepting that numbers can do strange, new things is one of the toughest parts of math: There’s numbers between the numbers we count with?

(Yes — decimals)There’s a number for nothing at all? (Sure — zero)The number line is two dimensional? (You bet — imaginary numbers) Calculus is a beautiful subject, but challenges some long-held assumptions: Geometry Help. Looking for some Geometry Help?

Our materials here review the basic terms and concepts in geometry and provide further lessons to help you develop your understanding of geometry and its applications to solving problems in real life. Geometry is about the shape and size of things. It is the study of points, lines, angles, shapes, their relationships, and their properties.

Videos have been included in almost all the following topics to help reinforce your understanding. Angles. No, really, pi is wrong: The Tau Manifesto by Michael Hartl. Elementary Calculus: Example 3: Inscribing a Cylinder Into a Sphere. Find the shape of the cylinder of maximum volume which can be inscribed in a given sphere.

The shape of a right circular cylinder can be described by the ratio of the radius of its base to its height. This ratio for the inscribed cylinder of maximum volume should be a number which does not depend on the radius of thesphere. For example, we should get the same shape whether the radius of the sphere is given in inches or centimeters.

Let r be the radius of the given sphere, x the radius of the base of the cylinder, h its height, and V its volume. Algebra Help Math Sheet. Arithmetic Operations The basic arithmetic operations are addition, subtraction, multiplication, and division. These operators follow an order of operation. Pascal's Triangle. Patterns Within the Triangle. Calculus and Differential Equations. A Gentle Introduction To Learning Calculus. I have a love/hate relationship with calculus: it demonstrates the beauty of math and the agony of math education. Reflections on Relativity. Mathematics Department - Mathematics Web Sites.

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