What'd you learn today?

[Sage]

Continuing on my optimistic streak (despite having probably failed the math test I took yesterday), everyday's a chance to learn something, so what'd you learn today?

I learned that my Chem sub doesn't realize that the whole point of using Noble-gas notation is to show the atom's valence electrons (specifically, to show that ions form octets). I also learned that dark blue doesn't work well on Ford Rangers, but it's too late now.

 

[Slick6]

I learned about using Flash MX today in Web Page Design. In science I'm learning all kinds of pre-Chem stuff about ions and stuff like that. In History I learned about Pearl Harbor. In English I had a test on congjulating(sp?) verbs. And in math I learned the Quadratic formula which I learned last year because I took the same class. That's what I did.

 

[Powripper]

I learned that physics sucks....alot.... so I dropped the class and have more to do english...(its a on line class) Happy me

 

[halfracedrift]

Hmm.. Judging by what you're learning Sage.. I'd say you're in around..grade... 11/12?

I learned that going outside while it's sunny can brighten one's mood by alot.

edit: Bah.. I didn't cheat though.. Ha. .. uhm.. that makes my guess better

 

[Slick6]

I predict by his profile that in 12 days he'll be 16.

 

[Sage]

Originally posted by halfracedrift
Hmm.. Judging by what you're learning Sage.. I'd say you're in around..grade... 11/12?

Try 10th.

I also learned that

lim    f(x+h) - f(x)
h->0    h

will probably haunt me forever, since it keeps coming back in every chapter we're doing (I say haunt, because the h->0 part with h being in the denominator really screws me up, since my algebra skills are sub-par... thank goodness for whoever invented the quick way to find derivatives).

 

[Klostrophobic]

I learned how to graph inverse tangents. How boring.

 

[Sage]

Originally posted by Klostrophobic
I learned how to graph inverse tangents. How boring.

Pah. I actually miss trig, a lot... I understood every single aspect of it. I'm basically doing Calculus A right now, and I have no clue what half the stuff I'm doing is about.

 

[Klostrophobic]

Why the hell are you like 3 years ahead of me in mathematics? I won't take Calculus until freshman year of college. I've never been challenged with math by any teacher to date. It's very boring.

You piss me off.

 

[Mike Rotch]

Hey Klos, I'm doing some extra math courses now via correspondance. Trig is lost on me. How do you convert Tan x/y to a radian figure along the lines of a[pi]/b?

 

[Sage]

Originally posted by Klostrophobic
Why the hell are you like 3 years ahead of me in mathematics? I won't take Calculus until freshman year of college. I've never been challenged with math by any teacher to date. It's very boring.

You piss me off.

Ooh, a mad smilie!

How come you aren't taking Calculus until after high school? What is there between whatever you're in now and then?

I took Algebra II/Trig last year, and this year I'm taking Pre-Calc, which was basically all trig the first semester, and Calculus A this semester (that's how they structured the Honors course anyway... I'm not exactly sure what the regular Pre-Calc classes learn, but I know they don't focus very much on actual Calculus, and it definitely doesn't count as a course of Calculus A).

I've been lucky to have pretty good math teachers every year. In fact, my former Algebra/Geometry teacher still holds the title as my favorite teacher ever. My Alg. II teacher was really hard on us, which landed me a B in her class, but I learned a whole lot from that class. And my Pre-Calc teacher doesn't always seem to know what she's doing, but she's really helpful.

 

[Mike Rotch]

How does the grading system work there Sage? What is the difference in percent between a A- and an A+ for example?

Here it works like this. A = Really good, B = good, C = average, D = below average, E = bordering on fail, F = Fail and G = retard.

Basically A = 90% and above, and the rest are 10% increments below that.

 

[Sage]

Originally posted by Mike Rotch
Hey Klos, I'm doing some extra math courses now via correspondance. Trig is lost on me. How do you convert Tan x/y to a radian figure along the lines of a[pi]/b?

Could you give an example?

 

[Sage]

Originally posted by Mike Rotch
How does the grading system work there Sage? What is the difference in percent between a A- and an A+ for example?

Here it works like this. A = Really good, B = good, C = average, D = below average, E = bordering on fail, F = Fail and G = retard.

Basically A = 90% and above, and the rest are 10% increments below that.

It's pretty similar here, except that we don't have "E" and "G", so it goes like this:

90% (and above) = A
80% = B
70% = C
60% = D
50% = F

Depending on the class, D can be considered not passing, though it's usually F (and getting a C will usually get you kicked out of an Honors class, though it depends on the subject).

A- and A+ are totally up to the discretion of the teacher, though most teachers do something like this:

A- = 89.5% - 91%
A = 92% - 97%
A+ = 98%+

 

[Mike Rotch]

Ok, umm..trying to find example...at work you see..

 

[Mike Rotch]

Ok, (bearing in mind i dont have my textbook with me)

Use Complex Numbers to find:

Z = z = r1(cos(sigma) + i sin(sigma) ) (where i-squared = -1)

The part that confused me is that they say, sigma (in below diagram) :

is equal to tan = -4/-2 = 2 = 3pi/2 or is it 4pi/3...

Basically, i dunno how they convert sigma in 3pi/2.

(sorry for the poor explaination - I dunno how else to do it )

 

[codered_59]

grade 10? and you're doing calculus limits already?!

man

 

[Burnout]

Sage must be like, really smart.

I'm home schooled and yearly testing starts Monday and goes through Wednesday. Should be easy, though. I'm using this GED book as test preparation so I should be good to go. Did you know I only need 48% over all on this test to pass? Either WV really is dumb or out nation has degraded its standards below utter recognition. Today I was just reviewing some different types of math; tomorrow I’ll do that some more. Come Monday, I’ll be kickin’!

I’d hate to be in an honors class, too much work. Blah, school sucks as it is.

You know, my brother is a genius. I say that, because I care…And so is my other brother, supposedly, although I’ve never seen his graded. Really though, my oldest brother is currently getting his masters in electronics engineering at WV University and he has the highest grades in the class. He is on the presidents list every year. When he got his 4-year at another college he was also top of the class, 4.0, president’s list student. I sure wish I was like him, some kind of smart right there. My oldest sister is also smart, although I beg to differ….We’ll just say that’s what the grades say…I’d say home schooling, or at least in my family’s case, is a great idea…Unfortunately my younger sister has a friend who has successfully failed the annual tests. You heard me right, you need 48% or more to pass, and this girl didn’t pass! She’s home schooled, which puts a bad name on all home schooled students and I hate that.

Something kind of cool, though. Being home schooled makes it really easy to graduate a year early. Since I only need an extra math and something else, if I do those with the rest of my 11th grade school work and take the 12th grade test next year, I’ll be able to graduate! Two of my siblings did this, and I’ll be making it 3.

 

[Sage]

Boy, polar coordinates... I did well in that chapter, but I don't remember a single thing about it. I'm looking over my notes right now.

 

[Mike Rotch]

The thing is, cos I am doing the course via correspondance (they send you material, you do it, you send in assignments and do an exam), I dont really have a source to ask.

Another good idea by Mike. 👍

 

[Sage]

Okay, I'm really confused, so I have to ask: Do the formulas rsinθ = b and rcosθ = a help at all?

My guess is that if you find r (which should be easy, since you have the other two sides of that triangle), you can plug that stuff into those formulas.

 

[Mike Rotch]

I think by that one would be able to transform the function 'z', to the equation of a straight line. Which actually now makes sense when they say in other question, transform <......> into the form a+bi.

Oh, I see how I confused the matter

When i said a(pi)/b, i simply meant 'a' and 'b' as any real number. I could have put 'x' or 'y' in instead....sorry.

 

[Sage]

Originally posted by codered_59
grade 10? and you're doing calculus limits already?!

Originally posted by Burnout
Sage must be like, really smart.

Eh, you people are giving me too much credit. I'm one of about a dozen sophomores in H. Pre-Calc, and most of the students in that class are Juniors, so I'm just a year ahead.

BTW Mike, I have to say that I have no clue what deMoive's theorem has to do with that problem, since that theorem has to do with finding the powers of complex numbers...

 

[Pako]

I learned that a SMTP server must be installed seperately from an Apache web service. Apache is only the HTTP/HTTPS ect, type of services.... It makes since, I've just never thought about it before..

 

[Mike Rotch]

You are correct. I confused myself with that (lack of txt book).

 

[Sage]

Originally posted by Mike Rotch
You are correct. I confused myself with that (lack of txt book).

Ah, okey dokey.

 

[Mike Rotch]

I just found this - and it should sort some stuff out

Grrr. lousy links

http://library.thinkquest.org/20991/textonly/alg2/trig.html?tqskip1=1

Goto radians -> accompanying figure 👍

 

[Shannon]

Uh, I learnt that rust = Fe + O + H²O

 

[Solid Lifters]

I learned that you guys are better at math than I am.

 

[Sage]

Originally posted by Mike Rotch
I just found this - and it should sort some stuff out

Grrr. lousy links

http://library.thinkquest.org/20991/textonly/alg2/trig.html?tqskip1=1

Goto radians -> accompanying figure 👍

Oh, um, not to be a jerk, but I'm surprised you haven't memorized the Unit Circle&trade; yet. Makes trig a million times easier if you do.

Anyway, not to leave you hanging, but it's waay past my bedtime. G'night folks.