New year, new good morning thread!

Good morning! Check out my dad’s table saw.

good morning to all the very smart engineers over at google

mornin, this is my mom’s older dog charlie. he’s mellow

morning, it's launch day for a thing my team built, wish us luck

had a dream last night that I bought a midi controller at a thrift store, good morning

good morning, last night I continued watching Canada’s Worst Driver, descending further into the Andrew Younghusband Cinematic Universe

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wait, does dressing up as a tin of sardines make Andrew a scalie? :thonk:

good morning, Siri doesn’t know how to pluralize temperature degrees because it’s written by damn Americans and their damn foolish Fahrenheit :dont_at_me:

good morning; we put Dave's cat bed on the book case and he loves it

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@ashfurrow I just checked this and it's true. Brackets change everything.

@adz @ashfurrow It does it without the brackets too! But so does Bing and DuckDuckGo.

@ashfurrow technically the minus sign is a multiplication with -1, therefore it could make sense that it has lower precedence than exponentiation.

Wolfram Alfa gives the same result (even for -3^2), and they are math guys.

@ytg @ashfurrow Precedence rules are PEMDAS:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

So the calculator query shows "-(3 squared)" which is -9.

You have to type "(-3) squared" to get 9.

@cj @ytg it’s really a question of changing language into symbolic math; I think most people would say the answer should be 9, but language is always ambiguous. If I use a calculator and press the buttons “-“, “3”, and “x^2”, the answer is indeed 9.

@ashfurrow @cj @ytg
Not in whatever calculator I appear to have on Ubuntu. pressing '-', '3', and 'x^2' yields -9.

When I use parens around -3, I get 9.

@rcode3 @cj @ytg the iOS calculator app handles this properly, and iirc, my TI-83 did as well.

Again, this is all the ambiguity of language. There's no "correct" answer, but some answers are more correct than others.

@cj @ytg is it a multiplication by -1? I consider “-3” to be its own number unto itself. But again, language :)

@ashfurrow Looks like it’s calculating the square of 3 and then negating it.

@ashfurrow Which, to be fair, is wrong if I remember correct order of operations

@djmoch well, order of operations only matters if there are multiple operations. (-3)^2 only has one operation: the exponent. This highlights the ambiguity of natural language. If a mathematician says the words" negative 3 squared", they mean (-3)^2 because -3 is a number unto itself (and not an operation). There's no purely correct answer, but I'd say that 9 is "more correct" than -9.

@erAck “-3” isn’t an operation, it’s a number. And the ambiguity of the natural speech “negative three squared” is highlighted by the difference of “(negative three) squared” vs “negative (three squared)” - I would argue the first is _more_ correct.

@ashfurrow
The best thing is when you do this to a 13 year old and they give you a look like "ugh, really? I'm too old for your shit"

@tapi @ashfurrow I would argue that the picture gives away too much information on your secret project.

And Dave looks up from YouTube and asks, what kind of containers are you using?

@ashfurrow Saw this image. Is this really how ships are shipped or is this just a bit of GIMP or Photoshop? 🤔

@ashfurrow A transport system for migrants fleeing war torn areas?

@ashfurrow I wonder if the formatting code is converting a number from °F but using the original number for the plural selection.

@ashfurrow I keep thinking that one day we're going to spot buildings that are designed to remind us of legos...

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Mastodon for Tech Folks

This Mastodon instance is for people interested in technology. Discussions aren't limited to technology, because tech folks shouldn't be limited to technology either! We adhere to an adapted version of the TootCat Code of Conduct and follow the Toot Café list of blocked instances. Ash is the admin and is supported by Fuzzface, Brian!, and Daniel Glus as moderators. Hosting costs are largely covered by our generous supporters on Patreon – thanks for all the help!