Roberto Abraham Scaruffi

Answer: Number theory is an absolutely terrible place to start if your end goa.​.​.​ Top Stories from Your Feed Your Quora Digest

What makes number theory a good subject for one's first attempt at original mathematical research? Qiaochu Yuan, PhD student in Mathematics at UC Berkeley 137 votes Number theory is an absolutely terrible place to start if your end goal is to quickly produce original mathematical research because the frontiers of number theory are very... Read More » Why do billionaires sometimes buy stuff like expensive paintings and giant yachts? Eric Scott, Product Manager for Hire and CEO of HoursTracking-com 539 votes Conservatively, a billionaire generates over $20M/year in cash flow assuming they own a massive company that pays a 2% annual dividend and most of their net worth is equity... Read More » What math concepts a programmer should know to make things easier? Dale Thomas, Robotics researcher, game developer, and writer of horror/sci-fi 81 votes Numerical methods for ordinary differential equations The very simplest method is explicit Euler. ... Read More » Why is (-1) ^2.2 = -1? Alan Bustany, Trinity Wrangler, Poker Player 107 votes One of the values of [math](-1)^{2.2}[/math] is [math]-1[/math], but there are four other (complex) values that mean you ought not to use the equality symbol! [math]2.2=\frac{11}{5}[/math] ... Read More » If I have $600k saved and I'm debating about buying a house for 1.2 million, would it be a smart decision if I make 200K/yr? Andy Rachleff, Executive Chairman, Wealthfront 234 votes I agree with the gist of Charles's advice but his numbers are slightly off. The typical rule of thumb for how much home can you afford is that your mortgage payment should... Read More » How do I intuitively understand [math]\int_ {0} ^ {\infty} e^ {-x^2} dx = \Gamma (\frac {3} {2}) = \frac {1} {2}! = \frac {\sqrt {\pi}} {2}[/math]? Jack Wimberley, Physics Graduate Student 80 votes There's a common, age-old trick for the integral that gives some intuition. Define [math]I = \int_0^\infty e^{-x^2} \, dx [/math]. Then, the square of this quantity is [math] I^2 = \left( \int_0^\infty e^{-x^2} \, dx \right)^2 [/math] ... Read More » I'm appalled by the code I wrote 3-4 years back. Is this normal? Jacob VanWagoner, EE/physics dude. Quantum electronics and photonics, along with the regular kind. 903 votes Yes, this is normal. I've looked through at some old code that I wrote and smacked my head about the stupidity and inexperience. I think everyone does it. Too bad for yo... Read More » How do I keep a conversation going with someone if I don't have anything particular that I want to ask them? Nicolas Cole, Writer, Fitness Model, Entrepreneur 2.6k votes There are 4 answers that every single person wants to hear: "No way!" "That's awesome!"...  Read More » How do programmers deal with their job when they are old? Reese Currie 825 votes This is actually one of the better careers to get old in. As long as you're interested in perpetually getting better, you'll only get better. Me at 45 could run circles a... Read More » What is the most important thing a director should take care of while selecting locations for large scale movies like Ant-Man? Peyton Reed, Director of Ant-Man 49 votes Locations are obviously crucial because sense of place is important to any movie. You want the locations to support the character and the story. We were looking for the l... Read More »

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