- Created By Admin
Class Members 1399

- Respond To Some Unanswered Questions
- hyperbolic function
- Simultanous Equation(Word Problems)
- simple pendulum
- hi
- Calc 11
- matrice
- mutiple integral
- Integration by partial fraction

- Featured Questions and Posts
- What is Algebra?
- Integers, Negative Numbers and Number Line
- if 2a+3b=4 and 3a b=6,then a=
- How to Calculate the Volume of a Cylinder
- power series solution of ordinary differential equations
- algebra 2 Factoring completely
- sets
- polynomials and calculus
- matrix
- mathematice

- Study Classes
- › Accounting
- › Admissions/ Scholarships
- › Agricultural Science
- › Architecture
- › Biology
- › Business 101
- › Chemical Engineering
- › Chemistry
- › Civil Engineering
- › Computer
- › Current Affairs
- › Economics
- › English
- › General Science
- › Government
- › History
- › HTML/ Web Designing
- › Internet Business
- › Journalism
- › Law
- › Literature in English
- › Mass Communication
- › Mathematics
- › Mechanics
- › Microbiology
- › Motivation and Inspiration
- › Music
- › Nursing Science
- › PC Maintenance
- › PHP Programming
- › Physics
- › Political Science & Politics
- › Software Development

Differentiation is a method to compute the rate at which a dependent output y changes with respect to the change in the independent input x. This rate of change is called the derivative of y with respect to x. In more precise language, the dependence of y upon x means that y is a function of x. This functional relationship is often denoted y = f(x), where f denotes the function. If x and y are real numbers, and if the graph of y is plotted against x, the derivative measures the slope of this graph at each point.

The simplest case is when y is a linear function of x, meaning that the graph of y against x is a straight line. In this case, y = f(x) = m x + b, for real numbers m and b, and the slope m is given by

m = change in y/change in x = Dy/Dx

where the symbol D (the uppercase form of the Greek letter Delta) is an abbreviation for "change in." This formula is true because

y + Dy = f(x+ Dx) = m (x + Dx) + b = m x + b + m Dx = y + mDx.

It follows that Dy = m Dx. 28 October 2010

Comment0 0 13 November 2010

1 0 13 November 2010

0 0 17 November 2010