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Can you try calculating 101 * 70 in your head?


I think therefore I am calculator?


Very easy to solve, just like it is easy to solve many other ones once you know the tricks.

I recommend this book: https://www.amazon.com/Secrets-Mental-Math-Mathemagicians-Ca...


Completely missing the point on purpose?


Elaborate.


you don’t solve it by brute forcing possible solutions until one sticks


Yeah, read it in another comment. Why do you think doing calculations in your head is brute-forcing? Many people can do it flawlessly, without even knowing of these "tricks". They just know. Is that brute-force?


[flagged]


You are not replying to what I said. I am not going to repeat myself, see the parent comment you replied to.


Your original comment completely missed the point of what it was replying to, you phrased it like you were correcting them but you were actually in agreement and didn't seem to realize it. They tried to clarify when you asked and when you responded you assumed they had the opposite viewpoint from what they actually have.


I replied to "Can you try calculating 101 * 70 in your head?".

Yes, many people can successfully calculate it through learned tricks or no learned tricks.

That is all I am saying. And my question is: how is calculating it in your own head brute-force, especially if done without such tricks?

No need to complicate it, answers to my question would suffice.


> how is calculating it in your own head brute-force

Doing this calculation in your head is not brute force, which was their entire point. Their math question was an example of why the brain isn't brute-forcing solutions, replying to this:

> What makes you think your brain isn't also brute forcing potential solutions subconciously and only surfacing the useful results?


And I posted a link to a book that helps with mental math. Does it make it brute force if I know some mental math tricks?

In any case, I am not sure why he kept on telling me that you do not solve it through brute-force because that is not what I said.


I can absolutely try this. Doesn't mean i'll solve it. If i solve it there's no guarantee i'll be correct. Math gets way harder when i don't have a legitimate need to do it. This falls in the "no legit need" so my mind went right to "100 * 70, good enough."


Or you could do (100 + 1)*70 => 100*70 + 1*70


Um, that's really easy to do in your head, there's no carrying or anything? 7,070

7 * 101 = 707 * 10 = 7,070

And computers don't brute-force multiplication either, so I'm not sure how this is relevant to the comment above?


I think it is very relevant, because no brute-forcing is involved in this solution.


That's not true, the 'brute force' part is searching for a shortcut that works.


The brute force got reduced down to fast heuristics, like Arthur Benjamin's Mathemagics.


It’s almost like you’re proving the point of his reply…


Why retraction?


Looks great! Impressive that it looks so slick and feature complete. It’s been a while since I used iTunes, so don’t fully understand where iTunes today is failing. Can you elaborate?


it's possible to get a mostly-classic experience if you use Songs view and enable the column browser, but it just seems like so many small features are buggy, don't work the same or have been removed that the overall experience just doesn't stack up. iOS syncing is as terrible and slow as ever.


You should put this on a blog. Would be cool to see


Check out Molnify www.molnify.com that both have support for formulas, and allows you to publish them as APIs (disclaimer: I built it)


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