Intellectual!!

An intellectual is someone who has found something more interesting than sex.

Source: Quote by Edgar Wallace.

Fun facts about Mathematics!!

For some of them, even hearing the word maths cannot be fun at all. But even for those people, these are some simple and important fun facts about mathematics. I have gathered some of these facts before 7 years and some before 7 seconds ago. Please enjoy reading those facts.

Facts about Mathematics:

• The word 'mathematics' comes from the Greek máthēma, which means learning, study, science.

• Do you know a word known as Dyscalculia? Dyscalculia means difficulty in learning arithmetic, such as difficulty in understanding numbers, and learning maths facts!

• Do you know ‘Mathematics’ is an anagram of ‘me asthmatic’. (An Anagram is word or phrase made by transposing or rearranging letter of other words or phrase.)

• Notches (cuts or indentation) on animal bones prove that humans have been doing mathematics since around 30,000 BC.

• The word ‘hundrath’ in Old Norse (old language from where English language originated), from which word ‘hundred’ derives, meant not 100 but 120.

• What comes after a million, billion and trillion? A quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion and undecillion.

• The number 5 is pronounced as 'Ha' in Thai language.555 is also used by some as slang for 'HaHaHa'.

• Different names for the number 0 include zero, nought, naught, nil, zilch and zip.

• Zero (0) is the only number which can not be represented by Roman numerals.

• The name 'zero' derives from the Arabic word sifr which also gave us the English word 'cipher' meaning 'a secret way of writing' .

• The = sign ("equals sign") was invented by 16th Century Welsh mathematician Robert Recorde, who was fed up with writing "is equal to" in his equations.

• Have you ever noticed that the opposite sides a die always add up to seven (7).

• Equal sign (=) was first used in 1557 by Robert Recorde, an Englishman.

• 12,345,678,987,654,321 is the product of 111,111,111 x 111,111,111. Notice the sequence of the numbers 1 to 9 and back to 1.

• Plus (+) and Minus (-) sign symbols were used as early as 1489 A.D.

• An icosagon is a shape with 20 sides.

• 2 and 5 are the only primes that end in 2 or 5.

• A 'jiffy' is an actual unit of time for 1/100th of a second.

• 'FOUR' is the only number in the English language that is spelt with the same number of letters as the number itself

• 40 when written "forty" is the only number with letters in alphabetical order, while "one" is the only one with letters in reverse order.

• In a group of 23 people, at least two have the same birthday with the probability greater than 1/2 .

• If there are 50 students in a class then it's virtually certain that two will share the same birthday..

• Among all shapes with the same perimeter a circle has the largest area.

• Among all shapes with the same area circle has the shortest perimeter.

• In many cultures no 13 is considered unlucky, well,there are many myths around it .One is that In some ancient European religions, there were 12 good gods and one evil god; the evil god was called the 13th god.Other is superstition goes back to the Last Supper. There were 13 people at the meal, including Jesus Christ, and Judas was thought to be the 13th guest.

• In 1995 in Taipei, citizens were allowed to remove ‘4’ from street numbers because it sounded like ‘death’ in Chinese. Many Chinese hospitals do not have a 4th floor.

• The word "FRACTION" derives from the Latin " fractio - to break".

• In working out mathematical equations, the Greek mathematician, Pythagoreans used little rocks to represent numbers.Hence the name of Calculus was born which means pebbles in Greek.

• Have you heard about Fibonacci? It is the sequence of numbers wherein a number is the result of adding the two numbers before it! Here is an example: 1, 1, 2, 3, 5, 8, 13, 21, 34, and so on

• Want to remember the value of Pi (3.1415926) in easy way ? You can do it by counting each word's letters in 'May I have a large container of coffee?'

• Have you heard about a Palindrome Number? It is a number that reads the same backwards and forward, e.g. 12421.

It's True. Isn't it?

Mathematics may not teach us about how to add happiness or subtract sadness. But it does give us one great hope that all the problems have atleast a single solution.

Have you heard about this before?

HOW WOULD YOU NAME A SIXTY ONE DIGITS NUMBER SUCH AS THIS: 7, 346, 648, 004, 560, 986, 215, 348, 444, 286, 445, 305, 146, 039, 140, 046, 960, 678, 582, 256, 003 ?

SEVEN VIGINTlLLION, THREE HUNDRED FORTY SIX NOVEMDECILLION, SIX HUNDRED FORTY EIGHT OCTODECILLION, FOUR SEPTENDECILLION, FIVE HUNDRED SIXTY SEXDECILLION, NINE HUNDRED EIGHTY SIX QUINDECILLION, TWO HUNDRED FIFTEEN QUARTER DECILLION, THREE HUNDRED FORTY EIGHT DUODECILLION, FOUR HUNDRED FORTY FOUR UNDECILLION, TWO HUNDRED EIGHTY SIX DECILLION, FOUR HUNDRED FORTY FIVE MONILLION, THREE HUNDRED AND FIVE OCTILLION, ONE HUNDRED FORTY SIX SEPTILLION, THIRTY NINE SEXTILLION, ONE HUNDRED FORTY QUINTILLION, FORTY SIX QUADRILLION, NINE HUNDRED SIXTY TRILLION, SIX HUNDRED SEVENTY EIGHT BILLION, FIVE HUNDRED EIGHTY TWO MILLION, TWO HUNDRED FIFTY SIX THOUSAND AND THREE.

Source: Shakuntala Devi (1984), "The Book of Numbers".

Way to locate prime numbers

Do anybody know how to find out the prime numbers from the whole list of available natural numbers?

I have found out one of the easiest ways to locate primes. It is called as SIEVE OF ERATOSTHENES and the most effective method of locating primes, this procedure separates the primes out of the set of all whole numbers. The whole numbers can be arranged in different columns starting with number one. But the correct method is to start arranging the number from two. Then the primes are circled and all multiples of 2 are crossed out. Next the number 3 is circled and all the multiples of 3 are crossed out. Next the same thing is done to 5 and 7. The remaining numbers are the primes.

Prime Numbers from 1 to 100

Prime Numbers listed using only odd numbers

Mathematicians call this procedure a SIEVE because it is a way of filtering the primes from the other whole numbers.

What Mathematicians do?

If you ask mathematicians what they do, you always get the same answer. They think. They think about difficult and unusual problems. They do not think about ordinary problems: they just write down the answers.

Uniqueness of numbers!!

Numeric Palindrome with 1's

1 x 1 = 1

11 x 11 = 121

111 x 111 = 12321

1111 x 1111 = 1234321

11111 x 11111 = 123454321

111111 x 111111 = 12345654321

1111111 x 1111111 = 1234567654321

11111111 x 11111111 = 123456787654321

111111111 x 111111111 = 123456789876543 ­21

Sequential Inputs of numbers with 8

1 x 8 + 1 = 9

12 x 8 + 2 = 98

123 x 8 + 3 = 987

1234 x 8 + 4 = 9876

12345 x 8 + 5 = 98765

123456 x 8 + 6 = 987654

1234567 x 8 + 7 = 9876543

12345678 x 8 + 8 = 98765432

123456789 x 8 + 9 = 987654321

Sequential 1's with 9

1 x 9 + 2 = 11

12 x 9 + 3 = 111

123 x 9 + 4 = 1111

1234 x 9 + 5 = 11111

12345 x 9 + 6 = 111111

123456 x 9 + 7 = 1111111

1234567 x 9 + 8 = 11111111

12345678 x 9 + 9 = 111111111

123456789 x 9 + 10 = 1111111111

Sequential 8's with 9

9 x 9 + 7 = 88

98 x 9 + 6 = 888

987 x 9 + 5 = 8888

9876 x 9 + 4 = 88888

98765 x 9 + 3 = 888888

987654 x 9 + 2 = 8888888

9876543 x 9 + 1 = 88888888

98765432 x 9 + 0 = 888888888

Without 8

12345679 x 9 = 111111111

12345679 x 18 = 222222222

12345679 x 27 = 333333333

12345679 x 36 = 444444444

12345679 x 45 = 555555555

12345679 x 54 = 666666666

12345679 x 63 = 777777777

12345679 x 72 = 888888888

12345679 x 81 = 999999999