/sci/ - Science & Math

Are subtraction and division even real?

This might seem like an odd question but how much math was required for boomers to graduate high school back in the 60's and 70's? I ask because none of the boomers that I know, all of whom graduated high school, know anything beyond basic arithmetic and geometry. None of them know the first thing about algebra, let alone trig and calculus. I don't understand how they can possibly have graduated high school without even knowing basic algebra unless the standards back then were far lower than they are now.

>>9542268
They work perfectly well in our system of mathematics and have led to discoveries applicable in the real world despite not being "real" themselves. What's the problem?

Why does sticking your fingers back your throat trigger your gag reflex, but swallowing food doesn't?

>>8782438
Maybe I am dumb, but what is this trying to show?

>>8505514
>le mechanical engineer specialized in climatology and evolution

If forces are mediated via particles, e.g. electromagnetic forces via photos, then what are the mediator particles for forces on macroscopic level?

E.g. when you pull a rope, then what particles are responsible for mediating said force?

It's obvious that when dealing with more than one variable, the definition for antiderivative fails when dealing with partial derivatives, but what about when dealing with total derivatives?

If we have the partial derivatives of a function with multiple variables with respect to each variable, and we sum them up, will the original function be an antiderivative of this sum?