31–40 of 162 posts
Earlier quoted context omitted.
It does indeed, with the dot on خ being the central dot (repeated once per rotation).
Can you please explain it in detail. I don't know Arabic and can't figure out the pattern. He is born in my country and it would be cool to show the cover to my peers.
Here's a previous post on HN with lots of discussion: https://news.ycombinator.com/item?id=18805624
I'm happy to see that the top comment is about his 25% credit for I Don't Know. That willingness to fold with grace is something that gets lost with standardized testing. IIRC, he also announced that the top 5% of the class would be automatic (and the only) A+ grades, and the bottom 5% would be automatic F grades. But don't worry, there would inevitably be more F's than that, naturally, so nobody was going to get scr…
From https://jeffe.cs.illinois.edu/teaching/algorithms/hwex.html#... > Please do not ask me for solutions. With very rare exceptions, I will say no, even if you are an instructor. I recognize that my stance limits the utility of these materials, especially for self-learners, but I'm trying to optimize the learning experience of my own students at Illinois. The point of homework is not to solve that particular homewor…
I think there are more than enough books to learn algorithms now. But there are a very little amount of resources that teach how to use them to solve problems.
From https://jeffe.cs.illinois.edu/teaching/algorithms/hwex.html#... > Please do not ask me for solutions. With very rare exceptions, I will say no, even if you are an instructor. I recognize that my stance limits the utility of these materials, especially for self-learners, but I'm trying to optimize the learning experience of my own students at Illinois. The point of homework is not to solve that particular homewor…
From https://jeffe.cs.illinois.edu/teaching/algorithms/hwex.html#... > Please do not ask me for solutions. With very rare exceptions, I will say no, even if you are an instructor. I recognize that my stance limits the utility of these materials, especially for self-learners, but I'm trying to optimize the learning experience of my own students at Illinois. The point of homework is not to solve that particular homewor…
While I get this stance (the books are often written with students in mind), it's sometimes a bit hard when reading this kind of material while not enrolled. I don't have any TAs, professors, peers etc to ask or grade my stuff when working my way through a text book in my spare time. How can I be sure I understood stuff correctly? For me it's ok, I guess. I have graduated years ago and it's strictly for fun. But I wo…
I think they've all evolved now to where that is only available for paid tiers.
One innovation I really enjoyed was marking and commenting another student's answers, once you'd submitted your own. There are flaws but it's a valuable variation on graded feedback.
From https://jeffe.cs.illinois.edu/teaching/algorithms/hwex.html#... > Please do not ask me for solutions. With very rare exceptions, I will say no, even if you are an instructor. I recognize that my stance limits the utility of these materials, especially for self-learners, but I'm trying to optimize the learning experience of my own students at Illinois. The point of homework is not to solve that particular homewor…
> I was asked multiple times for solutions to my self-pub ebooks that I relented. You could always publish the solutions in a separate paid ebook. If people want to be able to check their own answers, or they want to use the exercises to set homework and make it easier to grade, they might be willing to pay you for them.
I think we have some differences of opinion about the point of students not having the solutions.
(Hint: Some people arent as greedy as you)
I wish the solutions to the problems in this book were available somewhere.
IMO it’s a major waste of time to go through a book if I can’t check my solutions and be satisfied that I understood everything the instructor intended to from the problem. I won’t be investing the time into this book. Algorithms by Sedgwick instead has (third party) Solutions online.
But the whole damn point of math is learning to do it on your own. It’s like bitching that an art textbook doesn’t include draw by numbers in the back pages.
“I just want to know I’m doing it right“ Then check your work? Proofs can be checked. People did math alone before you.
I really view this mentality as pretty childish. Life doesn’t have a solutions guide. Get over it. This is easily one of the best written books on the subject. And I love that the problems remain difficult and meaningful, _because_ there’s not just a solution guide out there for every problem.
Earlier quoted context omitted.
> I was asked multiple times for solutions to my self-pub ebooks that I relented. You could always publish the solutions in a separate paid ebook. If people want to be able to check their own answers, or they want to use the exercises to set homework and make it easier to grade, they might be willing to pay you for them.
> they might be willing to pay you for them. I think we have some differences of opinion about the point of students not having the solutions. (Hint: Some people arent as greedy as you)
Earlier quoted context omitted.
IMO it’s a major waste of time to go through a book if I can’t check my solutions and be satisfied that I understood everything the instructor intended to from the problem. I won’t be investing the time into this book. Algorithms by Sedgwick instead has (third party) Solutions online.
You can still get value from a book that doesn’t give you all the answers. You can even get more value. Christ the answers have been all solved in papers, in literature, it’s all out there in small baby words what to do. But the whole damn point of math is learning to do it on your own. It’s like bitching that an art textbook doesn’t include draw by numbers in the back pages. “I just want to know I’m doing it right“…
Why don’t you ask people to invent math, then, and not show them the way? Why even teach anything? Of course people learn by checking their proof and being thorough, but it’s up to them. Solutions can provide certainty for people, much like how peers and peer review system can in science. Even the most decorated academics need a second opinion, and you are pretending like that isn’t a thing.
I think you need to stop being so harsh and get over yourself. Not everybody uses a solutions manual the way you think.