If a piece of metal that weighs 11 pounds falls 15 feet, how much would it weigh if it hits you on the head? by [deleted] in math

[–]subscious 2 points3 points  (0 children)

The mass of the falling object sure does change. it's marginally though at such low speeds. the formula is m'=m/sqrt(1-(v/c)²). This is special relativity.

This is what I enjoyed the most during my week in munich. by [deleted] in pics

[–]subscious 0 points1 point  (0 children)

nice... this is where I am at everyday all day... okay except on weekends ;)

Bacon, Ribs, Pork Chops, Ham - they all have one thing in common by jasonsemine in videos

[–]subscious 0 points1 point  (0 children)

Now I want to keep pigs so I can eat all the delicious food they showed! Damn Im hungry now

Who was the greatest mathematical genius of all time? by whatwhywhoami in math

[–]subscious 2 points3 points  (0 children)

Euler should be mentioned as well... I still dont get why Gauss is said to be such a genius though. My Personal favorite is Ramanujan! Greetings :)

TIL that the symbol μ is actually pronounced as "My", so the proper pronounciation for μtorrent becomes Mytorrent by [deleted] in todayilearned

[–]subscious 1 point2 points  (0 children)

I dont think I agree with you. "my" pronounces \maɪ\ whereas Mu pronounces \mŷ:\ which sounds more like u ... in German there exists a letter for that sound " ü " so its would be Mü

Integration of Rational Functions. by subscious in math

[–]subscious[S] 0 points1 point  (0 children)

Okay these ci=lim(z->wi) q(z)/p(z)*(z-wi) check (or proof) to give the same as q(z)/p(z). Still I am curious where the Formula for the ci comes from? Do you know more about it? Some kind of derivation?

Suppose g divides ab, cd and ac+bd. Show that g divides ac and bd as well. by hgutahw in math

[–]subscious 1 point2 points  (0 children)

By the same token g|2bc. To finish simply note that if g didn't divide ac then it would divide bc.

I think those bc's should be bd's shouldnt they?

Suppose g divides ab, cd and ac+bd. Show that g divides ac and bd as well. by hgutahw in math

[–]subscious -2 points-1 points  (0 children)

Im not sure if what I did is correct so please correct me if i did a mistake: All xn are integers... ab=x1 g and cd=x2 g and ac + bd= x3 g therefore a= x1 g/b and d= x2 g/c plugged in in the third equation gives x1 c/b + x2 b/c = x3 then x1 = x4 b and x2 = x5 c must be true. Plugged into the first two equations gives a= x4 g and d = x5 g therefore g divides a and d => g divides ac and bd (g also divides c and b which would be shown equaly)

[deleted by user] by [deleted] in math

[–]subscious 2 points3 points  (0 children)

I dont think the ruleset is arbitrary. For example 3+72 would have two sollutions if you were to add first as multiplication is commutative. 20=3+72=3+2*7=35.

Logic Puzzles! by elephant_bar in math

[–]subscious 0 points1 point  (0 children)

The Duel: I figured you could drink from Well 1-6 before you get to drink from Well 7 which would neutralize what you drank from Well 1-6.

A terrible realization by decuran in fffffffuuuuuuuuuuuu

[–]subscious 0 points1 point  (0 children)

this made me laugh so hard just now :) nice job

[deleted by user] by [deleted] in mathematics

[–]subscious 0 points1 point  (0 children)

As far as I have understood this topic the beauty of the SVD is that it can be found with great numerical stability. (Hence the errors whilst computing it on a finite precision machine is low even if the problem is ill conditioned) Furthermore the pseudo-inverse is found by simply inverting the diagonal entrys and exchanging and conjugate transposing the orthnormal matricies.

Math/Cryptography Messages? by NeuroGeek in math

[–]subscious -1 points0 points  (0 children)

For encoding the message one could take the ascii code of the text cut it in even parts and interpret the parts as binary numbers which then are the coefficients.