# udiboy

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bio website none location Mumbai, India age 17 member for 8 months seen Jan 21 at 19:12 profile views 7

A student and enthusiastic programmer. Love learning Physics! And I make android apps as a hobby.

This will make a great and interesting site : Puzzling. Please follow it

Please support Mechanical Engineering. There are many questions on this site related to engineering, which do not get answered because they are off-topic.

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 Feb11 awarded Popular Question Dec13 comment What is the highest power of a prime that divides nPr? I don't understand how this works? Dec13 asked What is the highest power of a prime that divides nPr? Aug15 comment How many squares in the $m \times n$ grid (m)x(n) + (m-1)x(n-1) + (m-2)x(n-2)... until you get the first zero term. Aug12 answered What is parametrics and Parametrization of equations? Aug12 awarded Commentator Aug12 comment Seating robots in a row Can you post some example patterns? From the rules it looks like there is only one pattern possible, seating them in alternate positions. Aug12 answered An alternative method of evaluating a particular limit Aug3 awarded Citizen Patrol Jul25 accepted Problem with proving Catalan number Jul25 revised Problem with proving Catalan number added 1 characters in body Jul25 comment Problem with proving Catalan number @QiaochuYuan, should have said "derived it". sorry... Jul25 comment Problem with proving Catalan number @TorstenHÄ•rculÄ•Cärlemän The link doesn't work Jul25 asked Problem with proving Catalan number Jul25 answered How long will it take a car to cross a bridge 900 m long if it is travelling at 54 km/h? Jul25 awarded Critic Jul25 comment Large numbers calculation just a note: --7--2--0--1--0--0-- is 16777735 in base 256. Jul17 comment Thomson's Lamp and the possibility of supertasks Theoretically, If you were to consider such a situation, it would appear as if the lamp is both on and off at the same time. Physically, you cannot switch the lamp on and off instantaneously. After a certain point, the lamp will switch states slower than the mad scientist pressing the switch, so you would never get to infinity. Jul16 awarded Custodian Jul16 revised Calculating earnings after few taxes Formatting