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Algorithms

khanacademy.org

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121–130 of 163 posts

Re: Algorithms

#121

Post by 40acres »

imakecomments wrote: post #111
b3b0p wrote: post #103

The Coursera Stanford [0] and Princeton [1] courses start again soon, February 20 to be exact. Not sure which one is better, but to refresh my atrophied CS skills of 10 years I've joined the Stanford course. Not sure how it compares to the Khan Algorithms course. Anyone have any feedback? [0] https://www.coursera.org/learn/algorithm-design-analysis/ [1] https://www.coursera.org/learn/algorithms-part1/

This is just my opinion and I'm sure it differs from others... Roughgarden's class is advance and expects mathematical maturity. You may find his course quite fast and rough if you are a beginner. Sedgwick's class is much easier. He is a bit boring and tries to use "real life" examples (in some instances) from the physical sciences to make the material relatable. This in my opinion detracts from the material. Also, h…

Great post, thanks for the resources.

I find there are a lot of online resources for those looking to learn algorithms and data structures but I've had trouble finding the same breadth and depth of resources surrounding the math behind CS (discrete math, probability, etc.). Any suggestions?

Re: Algorithms

#122

Post by dang »

machiaweliczny wrote: post #83

Total basics. Grade school level :/

Please don't post comments that are dismissive of other people's work. It may not be at your level, but everyone needs to start somewhere.

Re: Algorithms

#123

Post by dang »

bigdataanswers wrote: post #35

why python???? ... any language with functions will do. I mean just create a java class with all public static functions if you want it to work like python (global functions). Its really language agnostic. Your answer will be a number a string or a list of things. All languages can do that. Im making an explicit opinion that python is no better than any other language for implementing algorithms. HN please prove me w…

We detached this subthread from https://news.ycombinator.com/item?id=13654240 and marked it off-topic.

Re: Algorithms

#126

Post by irrational »

dylz wrote: post #90
joatmon-snoo wrote: post #74

Earlier quoted context omitted.

I think you meant React, Node, Vue, Vanilla, Backbone, Angular, [trails off]

Top 1000 javascript libraries of 2016: a year-end roundup

They change often enough that it would be better to create the list on a monthly basis.

Re: Algorithms

#127

Post by irrational »

snovv_crash wrote: post #71
joshwcomeau wrote: post #65

Earlier quoted context omitted.

And in your mind, "javascript hackers" are worse than "people with a university education in computer science" at doing modern front-end web development? In my experience, building performant web applications is much more about things like reducing bundle size, making sure animations are hardware-accelerated, being smart about _when_ you do complex work... The cost of using an O(n^2) algorithm over an O(n) algorithm…

If the 'javascript hacker' doesn't learn about the difference between iterating through a list and binary searching, and how/when one is better than the other, yes it is a problem. I say this as a self taught programmer who studied a non-CS engineering well after learning about big-O.

Can you give me an example of when a front end developer would need to do either of those things? On the back end sure, but on the front end? Who in the world is using JS to iterate through a list or do binary searching on the front end?

Re: Algorithms

#128

Post by ankurdhama »

It is really sad that people still start the discussion about algorithms by telling it as a sequence of actions or operations to accomplish a task. How to go to airport is not an algorithm, how to cook food is not an algorithm.

Re: Algorithms

#129

Post by ponco »

ankurdhama wrote: post #128

It is really sad that people still start the discussion about algorithms by telling it as a sequence of actions or operations to accomplish a task. How to go to airport is not an algorithm, how to cook food is not an algorithm.

While I agree "following instructions" !== "algorithm", it does serve as a decent bit of context to people who are COMPLETELY unfamiliar with computing let alone programming.

Re: Algorithms

#130

Post by ankurdhama »

ponco wrote: post #129
ankurdhama wrote: post #128

It is really sad that people still start the discussion about algorithms by telling it as a sequence of actions or operations to accomplish a task. How to go to airport is not an algorithm, how to cook food is not an algorithm.

While I agree "following instructions" !== "algorithm", it does serve as a decent bit of context to people who are COMPLETELY unfamiliar with computing let alone programming.

It provides them incorrect context, if you really want to provide context then start with long addition which everyone understands and tell them that it was the first algorithm they learned. Physical activities are not algorithms, algorithms are sequence of calculations on data and there are many many examples that people know about that they learned in elementary mathematics and that can serve as the proper context.
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