Tuesday, July 27, 2010

Introduction for Poisson equation

Let us study about Poisson Equation,

Poisson distribution is a limiting case of Binomial distribution under the following conditions.

(i) n the number of trials is indefinitely large ie., n → ∞.

(ii) p the constant probability of success in each trial is very small ie., p → 0.

(iii) np = λ is finite where λ is a positive real number. When an event occurs rarely, the distribution of such an event may be assumed to follow a Poisson distribution.

Definition: A random variable X is said to have a Poisson distribution if the probability mass function of X is

P(X = x) =e−λ λx/x!, x = 0,1,2, …for some λ > 0.

I hope the above explanation was useful, now let us study linear programing

Friday, July 23, 2010

How to solve radical fractions


Let us study how to solve radical fractions,

Mainly addition and subtraction problems are solved using the radical fractions.

For the addition problems, the numerator term are simplified first.

* Then, in the next step, we have to take the conjugate for the given problem.
* After that the multiplication are made to the obtained result.
* Then finally simplify the obtained terms.

For the subtraction problems, the numerator term are simplified first.

* Then, in the next step, we have to take the conjugate for the given problem.
* After that the multiplication are made to the obtained result.
* Then finally simplify the obtained terms.




Geometry Basics:Geometry Basics consists of some basic concepts like points, lines, planes etc.Let us now understand the circle properties.We have two properties of circle. They are area and circumference of a circle.Area of a circle is how much space available inside a circle. It is measured by square units. Area of circle can be calculated by following formula,Area A = π x Radius2.Circumference of a circle is the total distance around a circle. It is measured by units. Circumference of circle can be calculated by following formula,

Circumference C = 2 x π x Radius Here π = 3.14

Let us see some sample problems of circle using symbol r.Let us lastly understand about Tangent Circles. Two intersect circles in a single point is known as tangent circles.Hope you like the above example of Goemetry Basics.Please leave your comments, if you have any doubts.

Thursday, July 22, 2010

Factoring expressions by grouping


Let us study about factoring expressions by grouping,

Introduction to factoring expressions by grouping:

In mathematics, factoring is one of the interesting topics in algebra. Using the grouping method, given polynomial expression can be factored.

Polynomial expressions are the sums of a finite number of monomials. It has more than one term and it has a constant value for the each term, for that variable power of integral is raised to more than two.


Monday, July 19, 2010

Perimeter of a rectangle

Let us study about Perimeter of a Rectangle,
The perimeter of a polygon is out side distance of the polygon. A polygon is 2-dimensional; but, perimeter is 1-dimensional and is measured in linear units.

To find the perimeter of a polygon, take the sum of the length of each side.

The perimeter of a rectangle is ,out side distance of the rectangle.A rectangle has four sides,they are equal in length. The formula for finding the perimeter is Side A + Side B + Side A + Side B. This could also be stated as 2*Side A + 2*Side B or 2*(Side A + Side B) .

Factorising

Factorizing:In algebra equations factorization is one of the important method. Factorization gives the x values of the given algebraic equations.

Factoring the equations gives the desired value of the function. It is very easy and simple. General form of the algebraic equation can be written as, ax2 + bx + c. In factorisation, we find two or more factor values.Usually question are asked based on factors of 64.Quadratic equations are mainly used for factorising process.Hope you like the above example of Factorising.Please leave your comments, if you have any doubts.

What is Mean


Let us understand What is Mean:Mean comes under the topic Statistics. It is classified as one of the measures of dispersion. The other methods that are used to calculate the mean deviation are range, quartile deviations, etc..While calculating range and quartile deviation, we wont consider all the collected data for calculation. But in the measure of dispersion called mean deviation, we consider all the observed values.Let us now look at a more specific explanation of Mean Deviation.The mean deviation of a statistical data is defined as the arithmetic mean of the numerical values of the deviations of items from some average value.Mean deviation is also known as average deviation.The mean deviation is generally denoted by mean symbol M.D.Hope you like the above example of Mean.Please leave your comments, if you have any doubts.