Cookie Thread Act 8: The Death of Batman and Superman

General
#16332

Im assuming you dont use the upper dot when multiplying vectors because that can get confused with the dot product right?

1 Like
#16333

what the fuck tutuu

1 Like
#16334

There’s dot product and cross product. You use the dot or the cross accordingly

3 Likes
#16335

he iso’d me and did this. is this a threat. fucking serial killer cut out magazine note ass
image

3 Likes
#16336

in math you use dot because x can be confused with a variable

3 Likes
#16337

also yeah “multiplying vectors” is not a thing that exists independently of the dot product and the cross product

3 Likes
#16338

in fact most of the time you just don’t write anything and put the two things you want to multiply right next to each other

4 Likes
#16339

for writing I use any of

  • dot: 3・4
  • concatenation: 3a
  • parenthesis: 3(x)
  • some combination of these

can’t use 3 x 4 because x is too frequently a variable and it’d be confusing

for typing I use the same, except with * instead of ・

1 Like
#16340

but in cases where that would be ambiguous or cluttered dot is used

1 Like
#16341

The x you draw for multiplication looks way differetn

#16342

Well the one I draw

#16343

I can write 3×x unambigiously it’s easy it’s trivial

#16344

But yes I normally do not use that notation

#16345

meanwhile I had to modify my ‘t’ to make it not look like a plus

3 Likes
#16346

i mean that x is still sometimes used to refer to like. a 3 x 4 matrix or something like that. but really only in specific cases like that

2 Likes
#16347

how do you write epsilon

#16348

I thought that we used the lower dot for cross product but i think i was mistaken. Also getting lost in translation

#16349

3 reflected vertically

1 Like
#16350

image
Not ambiguous

2 Likes
#16351

the REAL analysis question