/sci/ - Science & Math

Do you have any tips to improve one's learning efficiency? Stuff like flashcards, mind maps, and such.

What does it mean if the equation is under this form?:

dy = a*b*dx

What does this mean? I know that the derivative notation is dy/dx (assuming y is the function variable, and we're deriving with the respect to x). But what does it mean if it's broken down like that?

What exactly is a housing bubble? And what caused the 2008 financial crisis? Please explain it in layman's terms.

My psychologist wrote that I have "Cartesian thinking" in my psychological report, after many hours of interviews and testing. What does that mean?

What are some applications of discrete mathematics, apart from programming?

Dear biologists and sociologists of /sci/:

At what age do people normally start basing their relationships on talking rather than playing together?

Should I take discrete mathematics?

What's the most useful branch of mathematics to study, apart from Calculus 1, 2, 3 and Linear Algebra, which I've already taken?

What level of mathematics do economics degrees use?

Which developmental type determines the way you act? I like making tractor and car noises, as well as animal sounds. People often call me 'retarded' when I do that. Which developmental type is lagging in my case?

Also, when I come home and nobody sees nor hears me, I usually roll around on the floor screaming "vroom vroom I'm a tractor" and "beep beep euuhhhh oink", and then run around the house while screaming out random phrases and making random facial expressions.

How to find absolute maxima and minima without the use of calculus?

so here I am calculating this shit:

f(1)=2*(1)^3+8*(1)^2+2*(1)-12

the answer is 0.

That means that x-1 is a factor in f(x), right?

why the fuck does (2x^3+8x^2+2x-12):(x-1) equal =2x^2+6x-4 then -8/x-1

Can anyone explain me this or point out where I did wrong?