Differential Equations Explained
Learning and science
interactive math explainer
SHOW HN2015
How HN took it
4 positive, 1 neutral or asking, 4 mixed, 15 critical, out of 24 comments about the project. Thread score -0.38.
Docs: 0 for, 8 againstExecution: 1 for, 5 againstDesign: 2 for, 2 againstIdea: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Clear, polished visuals and slick animations
From 2 comments
The first two sections seemed fine to me. However, the "cartography" section made almost no sense. It needs to be explained more clearly how the two carts are different and why…
klunger on HNCool idea, and the site looks nice. That being said, I was lost by the end of the first section.
stickperson on HN
Quick explanation helpful for beginners
From 1 comment
Thanks for explaining in literally 30 seconds what I failed to grasp in a fucking full semester of the class in college. Sigh.
newobj on HN
Objections
Explanations are unclear and too short for learners
From 3 comments
The intention is good, but without meaning to be overly negative, this is not very well written at all. There is imprecise and needlessly confusing and unclear phrasing ("To…
andrepd on HNCool idea, and the site looks nice. That being said, I was lost by the end of the first section.
stickperson on HNI can say assuredly, this explains precisely dick to a layman.
mml on HN
Interactive graphs broken in Firefox and Windows/IE
From 3 comments
Hovering on the graphs in Firefox, nothing happens and the console logs NaN problems.
potch on HNWin 7, IE 11 -- there's a mass of overlapping text and images.
dragonwriter on HNWindows phone.... http://i.imgur.com/Vo68qcm.jpg
wumbernang on HN
Friction example actually describes drag
From 1 comment
> Consider a cart rolling to a stop. Its motion obeys the DE v̇=−k⋅v, where v is velocity, v̇ is the rate-of-change of velocity and k is a 'coefficient of friction.' This is…
mdturnerphys on HN
Requests
Better explanation of the cartography section
From 1 comment
The first two sections seemed fine to me. However, the "cartography" section made almost no sense. It needs to be explained more clearly how the two carts are different and why…
klunger on HN
Fix hover and browser compatibility bugs
From 2 comments
Hovering on the graphs in Firefox, nothing happens and the console logs NaN problems.
potch on HNThe intention is good, but without meaning to be overly negative, this is not very well written at all. There is imprecise and needlessly confusing and unclear phrasing ("To…
andrepd on HN
Questions
Why solve ODEs by integrating
From 1 comment
The intention is good, but without meaning to be overly negative, this is not very well written at all. There is imprecise and needlessly confusing and unclear phrasing ("To…
andrepd on HN
Alternatives named
Wikipedia articles on ODEs
From 2 comments
The intention is good, but without meaning to be overly negative, this is not very well written at all. There is imprecise and needlessly confusing and unclear phrasing ("To…
andrepd on HNwikipedia. Why everyone keep showering ecyclopedic knowledge on blog posts instead of updating things there?
gcb0 on HN
Coddington's ODE textbook
From 1 comment
Ordinary differential equations? Okay: Just freshman calculus actually is a good start. E.g., for viral growth consider y'(t) = k y(t) ( b - y(t) ) where t is time, y(t) the size…
graycat on HN