|
Joined: Oct 2012
Posts: 5,134
Campfire Tracker
|
Campfire Tracker
Joined: Oct 2012
Posts: 5,134 |
Seriously, when do you use either/ You? Never. SOH CAH TOA dawg.
|
|
|
|
Joined: Dec 2006
Posts: 4,115
Campfire Tracker
|
Campfire Tracker
Joined: Dec 2006
Posts: 4,115 |
Seriously, when do you use either/ Remember the acronym Sohcahtoa.... it tells you what you need to do, know or compare to. Sin=opposite side over hypotenuse (Soh) Cos = adjecent side over hypotenuse (cah) Tan = Opposite side over Adjacent (toa) The are relationships of the lengths of the sides to the angle that forms them. If you know any two of the 3 parts of one of those equations, you can solve for the remaining piece.
|
|
|
|
Joined: Jan 2002
Posts: 12,857 Likes: 5
Campfire Outfitter
|
Campfire Outfitter
Joined: Jan 2002
Posts: 12,857 Likes: 5 |
The length of the days, plotted over time, makes a perfect sine-wave.
That's all the practical trig understanding I have. I knew all the college level calculations at one time, not clue one about what to do with it. It was a weed-out course, still have nightmares of "never went to class, time for the final".
Sic Semper Tyrannis
|
|
|
|
Joined: Feb 2017
Posts: 3,290 Likes: 3
Campfire Tracker
|
Campfire Tracker
Joined: Feb 2017
Posts: 3,290 Likes: 3 |
Some old horse s.o.h Caught another horse c.a.h Taking oats away t.o.a
Sine = opposite/hypotenuse Cosine = adjacent/hypotenuse Tan = opposite/adjacent
All you need to know about trig.
Yours in Liberty,
BL
|
|
|
|
Joined: May 2001
Posts: 18,345 Likes: 1
Campfire Ranger
|
Campfire Ranger
Joined: May 2001
Posts: 18,345 Likes: 1 |
Seriously, when do you use either/ I used to to use it to figure out bolt hole patterns on the x and y axis. When you want to correct a three axis MEMS magnetometer by way of an aligned three axis accelerometer to get a bearing when your instrument is tilted or rolled. Like when it's pointing at a drone that's carrying a grenade drop on you. When you want to project a location from your current location in Lat and Lon from the previous derived bearing and a given distance. When you want send a drone to that location because it is carrying a grenade drop on you. Off the top of my head...
Carpe' Scrotum
|
|
|
|
Joined: Oct 2012
Posts: 5,134
Campfire Tracker
|
Campfire Tracker
Joined: Oct 2012
Posts: 5,134 |
Tomorrow we tackle secant, cosecant, and cotangent.
|
|
|
|
Joined: Dec 2006
Posts: 28,172
Campfire Ranger
|
Campfire Ranger
Joined: Dec 2006
Posts: 28,172 |
Pie are round. Bread are square.
Hunt with Class and Classics
Religion: A founder of The Church of Spray and Pray
Acquit v. t. To render a judgment in a murder case in San Francisco... EQUAL, adj. As bad as something else. Ambrose Bierce “The Devil's Dictionary”
|
|
|
|
Joined: Jul 2006
Posts: 2,743
Campfire Regular
|
Campfire Regular
Joined: Jul 2006
Posts: 2,743 |
I could ask my 19-year-old grandson who got a perfect math score on the SAT, he'd know.
|
|
|
|
Joined: Oct 2005
Posts: 79,321 Likes: 2
Campfire Oracle
|
Campfire Oracle
Joined: Oct 2005
Posts: 79,321 Likes: 2 |
I used to know a bit of trig,...then CAD software turned up and caused me to forget it all.
|
|
|
|
Joined: Nov 2007
Posts: 47,168 Likes: 1
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Nov 2007
Posts: 47,168 Likes: 1 |
lol, my 9 yr old grandson is doing calculus, he will tell you he has a calculator in his head and that he is going to work for space X.
God bless Texas----------------------- Old 300 I will remain what i am until the day I die- A HUNTER......Sitting Bull Its not how you pick the booger.. but where you put it !! Roger V Hunter
|
|
|
|
Joined: May 2001
Posts: 18,345 Likes: 1
Campfire Ranger
|
Campfire Ranger
Joined: May 2001
Posts: 18,345 Likes: 1 |
I used to know a bit of trig,...then CAD software turned up and caused me to forget it all. I used to know how to get someplace, but my phone got mapping software. But I can project that someplace on the earth in Lat and Lon.
Carpe' Scrotum
|
|
|
|
Joined: Feb 2003
Posts: 10,383
Campfire Outfitter
|
Campfire Outfitter
Joined: Feb 2003
Posts: 10,383 |
This week I have been tapering my bull barrels down to sporter barrels. The angle is so small, I cannot use the degrees scale on the compound. I have to use geometry.
The sine button on my calculator has dust on it.
Turn the crank for 3 hours and put 6 pounds of steel chips in the trash.
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway The man who makes no mistakes does not usually make anything.-- Edward John Phelps
|
|
|
|
Joined: May 2008
Posts: 1,739
Campfire Regular
|
Campfire Regular
Joined: May 2008
Posts: 1,739 |
The orig. equation ---- Pi r not squared--- pi's r round ----- brownies r squared---- invented by the same person who invented Venison Orsini
|
|
|
|
Joined: Feb 2016
Posts: 17,821
Campfire Ranger
|
Campfire Ranger
Joined: Feb 2016
Posts: 17,821 |
Used to use some algebra and trig in my old job. No calculus.
Hated Calc in college. Got good at Calc 1.....by the end of Calc 2 LOL
|
|
|
|
Joined: Sep 2008
Posts: 5,733
Campfire Tracker
|
Campfire Tracker
Joined: Sep 2008
Posts: 5,733 |
I Use trig and algebra all the time for construction math but I don't need to understand it to do it longhand on paper anymore. I use a Jobber 6 calculator! The way God intended us to do trig/algebra.
That's enough to keep the buckethead coworkers away, they're allergic to math or learning!
"Camping places fix themselves in your mind as if you had spent long periods of your life in them. You will remember a curve of your wagon track in the grass of the plain like the features of a friend." Isak Dinesen
|
|
|
|
Joined: Dec 2007
Posts: 11,211
Campfire Outfitter
|
Campfire Outfitter
Joined: Dec 2007
Posts: 11,211 |
I used to know a bit of trig,...then CAD software turned up and caused me to forget it all. The last several years it was A square +B square =C square to lay out foundations. An app on my phone does that now.
|
|
|
|
Joined: Apr 2011
Posts: 151,738 Likes: 14
Campfire Savant
|
Campfire Savant
Joined: Apr 2011
Posts: 151,738 Likes: 14 |
Got through it in high school, forgot it all!
|
|
|
|
Joined: Sep 2011
Posts: 60,913 Likes: 14
Campfire Kahuna
|
OP
Campfire Kahuna
Joined: Sep 2011
Posts: 60,913 Likes: 14 |
Odd, the ol' 'fire is, I'll ask a question, and think it will get some answers, and it won't, then again---.
Without know all about it, I think computer programs have taken over a lot of human thinking.
These premises insured by a Sheltie in Training ,--- and Cooey.o "May the Good Lord take a likin' to you"
|
|
|
|
Joined: Apr 2010
Posts: 14,719 Likes: 2
Campfire Outfitter
|
Campfire Outfitter
Joined: Apr 2010
Posts: 14,719 Likes: 2 |
Dumb a sses! Products of NTA!!
Even birds know not to land downwind!
|
|
|
|
Joined: Feb 2016
Posts: 17,821
Campfire Ranger
|
Campfire Ranger
Joined: Feb 2016
Posts: 17,821 |
Odd, the ol' 'fire is, I'll ask a question, and think it will get some answers, and it won't, then again---.
Without know all about it, I think computer programs have taken over a lot of human thinking. Your OP title says algebra, but post body asks trig...... So which is it? I like trig.....
Last edited by hookeye; 07/28/22.
|
|
|
|
542 members (1936M71, 1beaver_shooter, 16penny, 1234, 17CalFan, 007FJ, 59 invisible),
2,277
guests, and
1,307
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums81
Topics1,192,389
Posts18,488,664
Members73,970
|
Most Online11,491 Jul 7th, 2023
|
|
|
|