Dear Reader,

Today I watched the movie Ramanujan (2014) , the only movie ever made about life of genius Indian mathematician Srinivasa Ramanujan, . Though it was in tamil but to one who worship him like a God , language was not a barrier. Well, thanks to english subtitles. It is really a very nice movie. Every Mathematics lover should watch this movie.

Also those who have not read his biography 'A man who knew infinity' by Robert Kanigel, should spare some time and must read that book.

Amit Bajaj

# WELCOME TO THE EXCITING WORLD OF MATHEMATICS

### Ramanujan (2014) - A movie

### Class XII - Weekly Test (Paper with it's Solution Key)

Dear
Students,

Hope you
have done well in Math’s XII class weekly test held today. I am providing
Question paper and its solution key for your ready reference.

All the
best!

Amit Sir

### Happy pi approximation day

Dear Reader,

Well, today is Pi Approximation Day.

Pi Approximation Day celebrates the mathematical constant π (pi). It is observed on July 22, due to π being roughly equal to 22/7.

The fractional approximation of π ,22⁄7, resembles the date July 22 in the day/month format, where it is written 22/7. Pi Approximation Day is therefore celebrated on July 22.

In geometry, pi is defined as the ratio of a circle's circumference to its diameter. July 22, often written as 22/7, is an appropriate day to explore pi, since 22 divided by 7 is an approximation of pi.

Pi Approximation Day is celebrated in a number of ways, including contests to memorize pi to the most decimal places, solving math problems involving pi, discovering the history of pi, ruminating on how life would be different without pi and—of course—eating pie.

So, enjoy this mathematical day ...

Amit Sir

### Movies Related to Mathematics

1. A Beautiful Mind (2001)

2. A Brilliant Young Mind (2014)

3. Good Will Hunting (1997)

4. IQ(1994)

5. The Number 23 (2007)

6. Proof (2005)

7. Contact (1997)

8. Sphere (1998)

9. Stand and Deliver (1988)

10. cube(1997)

11. 21 (2008)

12. The 4th Dimension (2006)

13. Bianca (1984)

14. Fermat's Last Tango (2001 Video)

15. Fermat's Room (2007)

16. Hotel Hilbert (1996 TV Movie)

17. Numb3rs (2005)

18. The Man Without a Face (1993)

19. A Brief History of Time (1992)

20. The Theory of Everything (2014 film)

21. Primer (2004)

22. Enigma (2001)

23. Sneakers(1992)

24. 21 grams (2003)

25. Pi(1998)

26. Straw dogs (1971)

27. A summer's tale (1996)

2. A Brilliant Young Mind (2014)

3. Good Will Hunting (1997)

4. IQ(1994)

5. The Number 23 (2007)

6. Proof (2005)

7. Contact (1997)

8. Sphere (1998)

9. Stand and Deliver (1988)

10. cube(1997)

11. 21 (2008)

12. The 4th Dimension (2006)

13. Bianca (1984)

14. Fermat's Last Tango (2001 Video)

15. Fermat's Room (2007)

16. Hotel Hilbert (1996 TV Movie)

17. Numb3rs (2005)

18. The Man Without a Face (1993)

19. A Brief History of Time (1992)

20. The Theory of Everything (2014 film)

21. Primer (2004)

22. Enigma (2001)

23. Sneakers(1992)

24. 21 grams (2003)

25. Pi(1998)

26. Straw dogs (1971)

27. A summer's tale (1996)

### What's the next number?

How would you continue the sequence 1,2,3,4,5,6,7,8,9?

The next number might be:

• 10, if this is the sequence of natural numbers;

• 1, if this is the sequence of the digital sums of natural numbers;

• 11, if this the sequence of palindromes;

• 0, if this is the sequence of digital products of natural numbers;

• 13, if this is the sequence of numbers such that 2 to their powers doesn’t contain 0;

• 153, if this is the sequence of numbers that are sums of fixed powers of their digits;

• 22, if this is the sequence of numbers for which the sum of digits equals the product of digits;

or • any number you want.

The next number might be:

• 10, if this is the sequence of natural numbers;

• 1, if this is the sequence of the digital sums of natural numbers;

• 11, if this the sequence of palindromes;

• 0, if this is the sequence of digital products of natural numbers;

• 13, if this is the sequence of numbers such that 2 to their powers doesn’t contain 0;

• 153, if this is the sequence of numbers that are sums of fixed powers of their digits;

• 22, if this is the sequence of numbers for which the sum of digits equals the product of digits;

or • any number you want.

### Special properties of number 30 (Today’s Date)

1. 30 is the sum of the first four squares, which makes it a square pyramidal number.

2. The icosahedron and the dodecahedron are Platonic solids with 30 edges.

3. 30 is a Harshad number ( an integer that is divisible by the sum of its digits)

4. The atomic number of zinc is 30

5. The minimum age for United States senators.

6. February 30 is usually used as a sarcastic date for referring to something that will never happen or will never be done.

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