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pulkit

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Everything posted by pulkit

  1. I do believe that most of discrete maths is well beyond the level of the school going community. Certainly the learning groups, rings, fields, vector spaces, algebras etc. etc. should only be attempted once one has grasped well the more basic concepts in maths.
  2. Hotmail is very slow to catch up. My inbox size still remains at 2MB, been hearing about this upgrade for 250MB for quite sometime, but it doesn't seem to have happened to my account. Atleast yahoo upgraded to 100MB soon after gmail was introduced. Thats primarily why I stopped using hotmail sometime ago. Theres also a free service offering 1 GB storage at http://www.rediff.com , this is quite fast as well but unlike gmail it does have a lot of adverts.
  3. We have lots of purple hearts here in India. In fact I got some growing in my garden too. The purple colouration is due to a pigment (I forget my 9th std biology and hence the pigment name) which performs the function of chlorophyll. Although it is not green in colour, the plant still flourishes as much as is the sunlight available to it.
  4. Google knows that most people don't require a 1000MB inbox which is why they supply such enormous inboxes. The best thing about it is that it is extremely fast. That probably doesn't matter to people in the US/UK with broadband connections, but to lots of people else where thats a major factor in deciding where to create an email acount on the web. What I like best about gmail is their powerful labelling system which helps in organising your mail and is much better than folders.
  5. Acctualy my course steered clear of most properties of polynomials, so I am not sure of that proof. We went on to do vector spaces and matrices after ring theory. What i found extremely intriguing was that ring theory had made the proof of unique prime factorisation much easier than it seemed to be intuitively. Often during group and ring theory the proofs of several theorems were trivialised. (Another example is fermat's little theorem)
  6. I don´t know about mimicing ability, but what I can tell you is that you´ll almost never see it alone, they´re nearly always found in groups. The bank myna is locally called ¨lali¨ in Punjab (¨lali" means the red one). Often the local names of birds reveal a lot about their habits and plumage. The sarus as per folklore is a very cunning creature and is a part of several childhood stories. I saw it in a bird sancturay. But its also a very common visitor to the city zoo (They have this area where migrating birds can be spotted seasonally).
  7. The unique prime factorisation theorem is something I did in the first year too. I did it using ring theory ................ It was quite an easy proof I must say. Polynomial of degree n has n roots is not too dissimilar, can be done using ring/group theory too.
  8. Can you state this theorem. I am sure I have heard of it, just can´t relate the name to anything.
  9. pulkit

    Hexadecimal

    Yes. You have to group in fours either side of decimal point and replace the group by approprite hex value.
  10. Maybe if he starts doing that today, he might be done in 20 years or so.
  11. Diamonds will occur in the phase diagram of carbon only and will occupy certain pressure - temperature regions. However that does not mean that they will meet any area of the phase diagram where a liquid exsists. In essence what I intended to ask was has liquid diamond ever been prepared ?
  12. There is a formal proof wherein you analyse the algorithm assymptotically. It is not a trivial one, hence the complexity does not come out intuitively to you. http://www.cse.iitd.ernet.in/~suban/CSL102/lecture/node55.html Look at the above link, its from the course webpage of a first year course I had taken. The proof is given right at the end of the page.
  13. The process is called reverse osmosis. It is used amongst other things to purify sea water and make it fit for drinking.
  14. There is a branch of engineering we have here called engineering physics. It has physics courses in all four years, and later on you may choose to diversify into one of several branches of engineering.
  15. pulkit

    Helium

    Its a major factor in determining the dynamics of a body in a fluid. And since air is a fluid, its a determining factor here too.
  16. I studied physics in first year - electrodynamics, optics and quantum mechanics. Presently doing a course in applied mechanics called engineering mchanics which is quite difficult i must add. Now i have just one course left called physics of materials, that has a lotta quantum mechanics. But since my major is in computer science that'll be the end of physics for me.
  17. Can u gimme some evidence ?
  18. No real numbers can satisfy that equation. Please specify the domain.
  19. pulkit

    Hexadecimal

    To convert integers to hex, just keep dividing by 16. You will get the hex code right to left in the successive remainders. For decimals keep multiply by 16 and keep takin integral part, its'll give u hex from left to right from the decimal point.
  20. I already have a gmail account and 6 invites left to send out, what envokes my curiosity is how you became a gmail beta tester ?
  21. The rest of it is formed due to complex fusion reactions taking place in the interior of the sun due to enormous temperature and pressure. The major constituents of the rest are iron and carbon amongst other things. There are formally hypothesized chains of fusion reactions which lead to formation of these elements. How do we know they are there ? Emission spectra of the sun.
  22. ok this is a bit beyond the scope of any maths I have done till now. I have only heard of the riemann zeta function at times (Its what we once needed to derive some law in black body radiation - for some integration purposes)
  23. I think the reasons behind that have more to do with the way your body is built and less with your mental make up. Thats just a physical irregularity. Thats very true. Crying is indeed an excellent coping mechanism. don't know why but it does seem to reduce stress ( thoug it often stresses up people around you ).
  24. The cost of living here is quite low, and there are a lot of job seeking people, which is why lots of people are a part of this industry. Bangalore is the Indian computer science hub. They work for so less merely because of the enormous numbers of people offering this service. But you must note that there are some very big Indian companies into software now too, they offer cheaper services as compared to some others again because even a high end payscale here is much less than what it would be in the US. I must add that most out sourcing is in the form of call centres. Theres a very nice chance that when you in the US call up a helpline for almost any product, your calls are diverted to India and someone is answering you with a fake name and a fake accent. Its an enormous industry nowadays, flourishing only because the pay scales here are extremely favourable to the employers. Also the telephone costs are not all that great even though the distances involved are enormous (Thats mainly because these people go on and hire sattelites for the purpose or rent some major communication backbone)
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