[Harold leaning back in his chair: Day 1209 of not using sin, cos or tan.]
I've been clean since 2002.
I use sin, cos, and tan every day xD
I'm sure your laptop would be just fine on power that came in a square wave instead of a sine wave.
Unironically yes. Switching power supplies don’t really care too much about the wave pattern.
you first.
I don’t understand what you want me to be doing lol
Most times you use a car inverter you're not getting a perfect sine. It really isn't a big deal
Having math in school is less about the actual math stuff but more about learning to think logically, jeez.
Then they should cut to the chase and teach logic, jeez.
Wait, you aren't using eⁱᶿ?
I was...then I got into 3d printing and some cad modeling.
If I'm gonna build stuff I at LEAST need my 3-4-5 triangle. Pythagoras sends his regards!
I did use trig at work a few months back to calculate some mechanical weirdness of our product that I do the embedded software for, though.
People in this thread don't DIY and it shows.
Idk, based on conversations I've had with friends who are carpenters, I don't think they are bringing their graphing calculators to the jobsite. Instead they have a bunch of wiley tricks they use to get the right angle/cut without having to do math, since, even if they remember high school trig, it is faster and more accurate to just flip their square over or whatever
Carpenters won't be using it, because the tolerances for what they're doing are large enough not to matter, and they'll usually sneak up on a fit rather than spend time doing math.
As it happens it's not as important as it used to be, but knowing trig was at once point a necessary skill in skilled manufacturing roles.
This sort of thing:
Which today would be done with CNC, back in the day that guy needed to know how to calculate where each of those holes was going to be.
That particular image is a space shuttle part on a horizontal mill in the 1970s. I toured a shop at my local power utility doing very similar work on similar machines today. But they're not hiring kids out of school for that jobs, because fucking nobody knows trig anymore.
I sin every day
But do you tan?
I do, cos I can.
Currently on day zero since I develop audio software for a living.
Weirdly enough I think that the majority of my use of trig since college has been for video games. That being said, I feel its squarely one of those "you probably wont need it much, but theres a chance you will someday for some random thing or will go into a profession that needs math that requires knowing trig to learn, and you wont want to have to learn it the first time right then." things. Its pretty foundational to other math and does have a lot of practical applications even if not for everyone, so might as well teach it to kids when theyre old enough to learn it.
That's not dissimilar from my experience, one of my favorite "I'm so glad I know how trig works" moments was for a data visualization class I had, I wanted to animate a little rocket ship orbiting the earth. I can't fully remember the exact math I used, but it was so gratifying to realize that I could use trig to convert rotational degrees per second into a point in space that I could draw my icon at (as well as the angle to tilt the image).
One of my hobbies is 3d printing and I do a bunch of my own modeling, so trig pops up there pretty regularly too.
I think that's the absolute worst reason possible. None of my homies remember anything about trigonometry other than that it exists and some of the more relatable concepts like the literal meaning of tangential and the name of the shape created when you shake a jump rope.
No, it's not actually good to teach things to children that are so abstract that it doesn't stay in memory without hardcore drilling. It is MUCH smarter to study trigonometry when you need it.
The trouble with that is, if youre going to go into a field that does need it regularly, theres a decent chance youre going to need it because you need math for which trig is like, foundational to the foundations of the thing you actually need. It would be a fair bit of a slowdown to go teach such basic things to all the engineers and scientists and whoever else may need such things before teaching them the math that builds on it, and you both do need those professions in a modern society and dont know in advance which kids will ultimately end up in them.
Also, abstract? It seems to me that, being generally related to and derived from geometry, trig is one of the less abstract bits of math, simply because you can draw out the circles and triangles and waveforms and relatively clearly see what the concepts represent and how they relate to eachother, rather than just writing out a sequence of symbols and remembering what to do with them all. If it takes hardcore drilling to stick around, thats in my view more a case of it being taught in an ineffective manner that prioritizes brute force memorization over actual learning.
I used an arctan the other day cutting new window trim for my house where everything is very much not square. Cut came out perfect on the first try, felt proud.
I've done that sort of thing before, too. But my experience is that I spend 20 minutes scratching out a formula that would make my physics profs proud, then make the cut, it comes out wildly off, I realize I would have been better off eyeballing it, and then I hide my failure with caulk
Look at y'all bragging.
Cries in using trigonometry daily.
idk, I feel like if you use something you learned in school daily, you kinda won at jobbing.
My counter recently got reset, as I wanted to build/program a circular slider.
I actually did have to use my trig once. Once.
One time, years ago, I was building my own desk, and while making the design for it, I needed to determine how long the (multiple, intersecting) diagonal supports would be, to figure out if I could manage to build it without buying an extra board worth of lumber. Turns out, I could. And knowing that let me build the desk without wasting the price of an extra 2x4. Knowing trigonometry saved me several dollars! Several!
But you still benefit from it existing! Yay!
I haven't used it since senior year of highschool in 1999... That's approaching 10,000 days!
Used these all the time in quality inspection. Triangles/Trigonometry are like Geometry’s Swiss Army knife.
Harold truly is living the life. No sin, cos, or tan? Jealous.
No memes, just stock photos
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