Wednesday, August 11, 2010

Math encryption algorithm

Welcome to math tutor online free,
Every time you send a credit card number over the Internet, it gets
encrypted by your browser, and the encryption algorithm is based on
the theory of prime numbers. At some point, electronic money will
become as common as paper money, and _that_ will also be based on the
theory of prime numbers. examples on math forum;
And what's used more in the real world than
money?

The importance of prime numbers is that any integer can be decomposed
into a product of primes. For example, if you want to know how many
different pairs of numbers can be multiplied to get 360, you can start
trying to write them down,

1 * 360
2 * 180
3 * 120
4 * 90
5 * 72
6 * 60

checking every single number up to 180, and hope that you don't miss
any; or you can decompose 360 into its prime factors,

360 = 2 * 2 * 2 * 3 * 3 * 5

with the assurance that every factor of 360 will be a product of a
subset of these prime factors.
Learn more on online math forum.

Math Circle experiment

Welcome to math help online,

The circumference
divided by the diameter is the same for every circle' is only true if
you're talking about a 'flat' space. But here's an experiment you can
do to get a feel for what it would be like to live in a 'curved'
space:

Look at a globe, like this one:



Call the horizontal circle that goes through the top of South America
(i.e., the equator) 'Circle 1', and the horizontal circle that goes
through Chicago 'Circle 2'. more examples on online math tutors;
If you measure the 'radius' of each circle
along the surface of the earth from the north pole (which is the
'center' of each circle), then dividing circumference by diameter
gives you two different values of pi, doesn't it?

In fact, if the earth were perfectly spherical, the 'radius' of the
equator (measured along the surface) would be 1/4 of its circumference
(do you see why?), so the ratio of circumference to diameter - that
is, 'the value of pi' - would be exactly equal to 2, rather than
3.14...
learn more on online math forum.

Tuesday, August 10, 2010

Planning math

Welcome to free online math tutors,

knowing ahead of time what the teacher is going to say makes
class a _lot_ less frustrating - and quite a bit more interesting.
(It's a little like when you see a movie again - the second time
around, you already know what will turn out to be significant, math forum; so you
can notice all kinds of details that escaped you the first time
around.)

And this way, when the time for a test rolls around, you'll know that
you already _know_ all the material, so you won't _need_ to study,
except perhaps to go back through the chapter and make sure you can
still work the practice problems. continue learning on free math tutor online.

What is a Composite number

What is a Composite number:Let us learn about what is a composite number,A Composite Number can be divided evenly by numbers other than 1 or itself.Fractional notation also is an important topic that we will learn in the coming blogs.Hope you like the example of what is a composite number,please leave your comments if you have any doubts.

How to Find Standard Deviation

In this blog we will learn about standard deviation and how to find standard deviation,the process to find the standard deviation is easy,in statistics, to find standard deviation of the group of data is the square root of that variance. The variance is the measure of variability about the mean.To find standard deviation is the square root of average squared deviation from the mean.To find standard deviation is generally used due to the same units as the mean and the original observations.In the next blog we will learn about linear pair.Hope you like the example of how to find standard deviation,please leave your comments if you have any doubts.

Monday, August 9, 2010

What is perimeter


What is perimeter:We have learnt about the various parts of a circle,now let us learn about what is perimeter. The perimeter is the total distance around the outside of a two - dimensional shape (2D). We can calculate it by adding together all the length of a shape. The perimeter of a polygon is the sum of the lengths of all its sides.Hope you like the above example of what is perimeter.Hope you like the above example of what is perimeter,please leave your comments if you have any doubts.

Friday, August 6, 2010

Rules of logical derivation

Welcome to math tutors online for free
The rules of logical
derivation. This is a less popular thing to do, because the legal
steps in a mathematical derivation are typically very obviously truth-
preserving. math help, Here's a simple example of a mathematical derivation:

1) Assumption: Every natural number has a successor
that is itself a natural number.
2) Assumption: Zero is a natural number.
3) Definition: One is the successor of zero.
-------------------------------------------
4) Theorem: One is a natural number.

The only claim being made here is that if we accept the two
assumptions and the definition above, then we must accept that one is
a natural number. learn more on math forum.