John2022
Joined 4 years ago
Joined 4 years ago
As an aside, I think the font sizes and spacing would be better if much smaller/more dense.
If they'd just said the above, and I think not shown the value of t, it would have been a lot clearer, at least to me.
If in later levels they show formula(s) using gravity, and perhaps show the skier on different planets, with different values of G, then I can see the value in showing the value of t. But as it is, I think it's confusing.
Instead they say the task is to set path of skier - i.e. how the skier goes down the mountain. But that's not correct - the skier obviously doesn't need to just follow the mountain top. Common sense/reality is the opposite - you rarely just follow a mountain top.
If they'd just said the above, and I think not shown the value of t, it would have been a lot clearer, at least to me.
If in later levels they show formula(s) using gravity, and perhaps show the skier on different planets, with different values of G, then I can see the value in showing the value of t. But as it is, I think it's confusing.
But even ignoring that, nowhere does it define the relationship between t and x. What I assume they mean but don't say is that x=t. That's arbitrary.
Also I assume you mean the path of the sled is (t, f(t)) where f is the function defining the slope. If the path of the sled had a value of (x,y) it would be stationary :)
They should, in my view, have had y as a function of t, and dropped x. Or another solution that doesn't create confusion.
I also think it's weird that changing the equation changes the shape of the mountain, but the text is about changing the path of the sled.
I’ve seen it in so many talks, especially from people working in big tech. Something is a success in spite of some aspect of it, and those responsible for that aspect go on speaking tours about their journey and what we mere mortals can learn from them.