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Sunday, May 19, 2013

Birthday Time Folks



Yes yes, first let me apologize to my readers that I have not written in the last 2-3 weeks. Well it's examination time here at my end with kids writing their IB, IGCSE and SAT exams, so I was totally submerged in it as well.

Now, what could be the occasion this time around coming up to write a piece? well you guessed it right dear friends, its my Happy Happy Birthday coming up this Wednesday i.e. 22nd of May. Now well, can you guess one more thing, yes what could be my age. Here are some hints, a) I am a 2-digit prime number. b) I can be written as the sum of 2 perfect squares. c) I am the only two digit number in base 10 whose product, when multiplied by two, subtracted by one, and then read backwards, equals the original two digit number. Now that should have kept your brain exercise for a little while and voila! for those who got it right the MAGIC NUMBER, yours truly is turning this week is 37.


2 science facts about the number 37, a) 37 is the atomic number for Rubidium(now I know where my continuous state of reactivity comes from) and b) 37 deg C is the normal body temperature in the human body.
Some other known facts about 37 a) +37 was the international dialing code of the German Democratic Republic (aka East Germany). Today the +37 prefix is shared by Lithuania (+370), Latvia (+371),Estonia (+372), Moldova (+373), Armenia (+374), Belarus (+375), Andorra (+376), Monaco (+377), San Marino (+378) and Vatican City (+379). b) Incidentally 37 is also the number most people state when asked to give a random number between 0 and 100. Thank you Wikipedia for all the findings.

Freebies for you: Since it is after all my birthday, here are some pages you might want to visit:
a) It's my birthday, as well: A very well written article by Steven Strogatz showing you the chances(Probability for you #math language experts) that two of you can share the same birthday.
You can read it here: It's my Birthday too.

b) How to celebrate your birthday with Math: An excellent #Math based article superbly written by my cousin Bon (aka @mathfour on twitter).
You can find her piece here: Birthday Math

c) Exactly... how old are you??? An excellent page showing exactly how many years/months/weeks/days/hours/minutes/seconds have you lived so far:
You can find this beauty here: Seriously, what's your age?

That sums up my birthday special dear friends, hope you enjoyed it. As always I would love a lot of comments if possible 37 at least ;) they could be of any of the types mentioned below:
Comments

And lastly, maybe you would all want a small dance with me, maybe Mathematically what say? you decide the dance and we can totally do it then! So come on dear friends, join me in the celebrations:













So long then dear friends, keep in touch. God Bless you All
Vijay aka the MathMan



Wednesday, May 1, 2013

My Inheritance And All About Numbers

Hello Everyone,


Mensa Puzzles
Its me again as promised the last week. People usually inherit a lot of wealth, houses, land and some even inherit their family businesses. When it came to me, I guess I inherited a lot of logical skills from my father. He used to always encourage me in solving crosswords, trying out different puzzles including





Numbers always enthused me and I looked for them wherever I went.
My house number was 7, student ID number 23, Date of Birth 22, Basketball Jersey no. 13, soon I was surrounded by numbers wherever I went. I would rather see this as a new interest in my life, 
Numbers


Wikipedia states that as a Mathematical object used to count, label and measure. I loved the counting part the most as I believe counting is very integral part of our lives. We count our moments, coins, objects and most importantly we count our blessings 







I learnt counting mostly using my ten fingers, yes I figured that out after I knew my 1-10. 
The illustration shows how I learnt counting numbers using my fingers:

There are many types of Number System, the most notable being:

  • Real numbers. Real numbers consists of all the numbers out there. They can take on any form — fractions or whole numbers, decimal points or no decimal points. Real numbers can take value ranging from -∞ to +∞ or -Infinity to +Infinity. Symbolically they are represented as |R.
  • Natural numbers. Natural numbers are all numbers greater than zero, but don’t include fractions: 1, 2, 3, 4, 5, 6, 7, and so on into infinity. Symbolically they are represented as |N.
  • Whole numbers. Whole numbers are just all the natural numbers plus a zero: 0, 1, 2, 3, 4, 5, and so on into infinity. They act like natural numbers and are used when whole amounts (no fractions) are required. Zero can also indicate none. 
  • Integers. Integers are basically all whole numbers and their opposites. Integers can be described as being positive and negative whole numbers:  –3, –2, –1, 0, 1, 2, 3, . . Symbolically they are represented as |Z.
  • Rational numbers. Numbers which can be written in the form of a fraction are known as Rational Numbers. Symbolically they are represented as |Q.
  • Irrational numbers. Irrational numbers are the opposite of rational numbers. An irrational number cannot be written as a fraction and decimals which never end. 
  • Even numbers. An even number is one that divides evenly by two, such as 2, 4, 6, and 8.
  • Odd numbers. An odd number is one that does not divide evenly by two, such as 1, 3, 5, and 7.






    Interested readers may want to check this site: History of Numbers for more insight on the origin and usage of Numbers.
    Numbers can be seen everywhere in real life including in clocks, calendars, measuring speed, distances, weight etc. I would also recommend these 2 highly rated shows namely a) Numb3rs and b) Touch for the unlimited and profound use of numbers. Right then, its me Vijay aka Mathman signing off.
    Stay Safe everyone wherever you are.