For integrals, we would say that "b and a are the limits of integration".
The notation "lim x->0 1/x" would be read as "the limit of 1 over x as x goes to zero." In general, "lim" is short for "limit" of whatever follows it, with respect to what is below the "lim" symbol. Rarely, I have also seen the notation "l.i.m." used for the limit in mean, i.e. the limit with respect to the L^2 norm.
But really, I'm team Green. b goes more or less in the place Red shows it (or maybe halfway between where Red and Blue show it), but a goes to the left of the integration symbol, mirroring where the b goes relative to the curve at the end of the ∫
Best answer, although I work with delta "functions" a lot so I actually have to be careful picking which interval with boundary {a,b} to pick (for example, if I integrated δ(t-a)+δ(t-b) over all t in (a,b), I'd get 0, but if I integrated those deltas over (a,b] I'd get 1, and integrating over [a,b] would give 2).
Also I do have to do integrals with parameters and multiple variables so I can't really leave out the differential.
29 Comments
chris@l.roofo.cc · 80 pts · 2y
Whatever LaTeX does by default
PM_ME_VINTAGE_30S@lemmy.sdf.org · 50 pts · 2y
LaTeX: typically let software decide for me, override if it looks bad.
Paper: Too shit at writing to make a consistent choice
TheFriendlyDickhead@lemm.ee · 25 pts · 2y
B. A only when there is little space
hihi24522@lemm.ee · 7 pts · 2y
Same, but there is never enough space
smeg@feddit.uk · 6 pts · 2y
Same. B if I'm feeling fancy, A if I'm trying to fit everything on one line.
Tja@programming.dev · 14 pts · 2y
Are those called limits in English? How do you call those things then?
lim x->0 1/x
PM_ME_VINTAGE_30S@lemmy.sdf.org · 20 pts · 2y
For integrals, we would say that "b and a are the limits of integration".
The notation "lim x->0 1/x" would be read as "the limit of 1 over x as x goes to zero." In general, "lim" is short for "limit" of whatever follows it, with respect to what is below the "lim" symbol. Rarely, I have also seen the notation "l.i.m." used for the limit in mean, i.e. the limit with respect to the L^2 norm.
Venator@lemmy.nz · 3 pts · 2y
Also limits. But also "tends towards".
howrar@lemmy.ca · 13 pts · 2y
Better question: Where do you put the dx?
Chadus_Maximus@lemm.ee · 13 pts · 2y
In front of the integral
Mubelotix@jlai.lu · 5 pts · 2y
What? Where else would you put it?
HeyThisIsntTheYMCA@lemmy.world · 8 pts · 2y
Wherever you want it baby
qjkxbmwvz@startrek.website · 5 pts · 2y
Immediately after the integral symbol, before the integrand, is also common: https://math.stackexchange.com/questions/1146345/notational-position-of-dx-in-integral
It has a nice "operator" look this way.
Mubelotix@jlai.lu · 1 pts · 2y
I would interpret this completely differently than what was intended
Car@lemmy.dbzer0.com · 11 pts · 2y
A fits on paper much better than B, especially when you try to write as small as possible to fit all of your work on one line
lugal@sopuli.xyz · 8 pts · 2y
Know your limit
Zagorath@aussie.zone · 8 pts · 2y
Out of these? I'm team Blue.
But really, I'm team Green. b goes more or less in the place Red shows it (or maybe halfway between where Red and Blue show it), but a goes to the left of the integration symbol, mirroring where the b goes relative to the curve at the end of the ∫
jabathekek@sopuli.xyz · 3 pts · 2y
Comrade!
chonglibloodsport@lemmy.world · 7 pts · 2y
The kerning on Latex integrals has always bothered me. The f(x) could move a LOT further to the left!
model_tar_gz@lemmy.world · 6 pts · 2y
+ C: I’m so indefinite, I don’t respect limits.
Feathercrown@lemmy.world · 6 pts · 2y
A, B takes too much space
Brickardo@feddit.nl · 6 pts · 2y
(a, b) at the bottom. It's a 1d integral, so nothing goes after f as well for me.
PM_ME_VINTAGE_30S@lemmy.sdf.org · 2 pts · 2y
Best answer, although I work with delta "functions" a lot so I actually have to be careful picking which interval with boundary {a,b} to pick (for example, if I integrated δ(t-a)+δ(t-b) over all t in (a,b), I'd get 0, but if I integrated those deltas over (a,b] I'd get 1, and integrating over [a,b] would give 2).
Also I do have to do integrals with parameters and multiple variables so I can't really leave out the differential.
oxideseven@lemmy.ca · 5 pts · 2y
a sits on the dooblydoo on the left, b hangs from the dooblydoo on the right.
sharkfucker420@lemmy.ml · 4 pts · 2y
Depends on if I accidentally wrote the function too large
collapse_already@lemmy.ml · 3 pts · 2y
A gang. Does that mean I am old?
jmcr@lemmy.ml · 2 pts · 2y
ConTeXt has some nice new features: https://www.pragma-ade.com/general/manuals/mathincontext-screen.pdf#page87
Iron_Lynx@lemmy.world · 1 pts · 2y
If a and b are simply numbers or variables (ex. 1, 2π, x), either, maybe red.
If a or b is a function (ex. (x + y), (1/N), (z - r²)), then blue.
rustyfish@lemmy.world · 1 pts · 2y
Always A. Except when I’m drunk.