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OfflineThebooedocksaint
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Registered: 05/10/09
Posts: 281
Last seen: 4 years, 1 month
Re: Learning Algebra and Calculus by onesself [Re: pwnasaurus]
    #19414415 - 01/13/14 08:52 PM (10 years, 17 days ago)

Quote:

pwnasaurus said:
Quote:

Thebooedocksaint said:
Luckily E.P. I and II are all the physics I'll need. Do you think someone with 0 physics experiance at all will be fucked in the course?

I've had to learn a few units already because of chemistry courses, but some things people just assume I know and I'm like "dude wut"?

Judging by my Statistics online webpage the prof takes it seriously.



It depends how good you are at math and physics :shrug:.  If you do not have good math/physics intuition you are probably fucked.




I've never been bad at math for sure, it's probably my strongest subject. I just have to get at least a 3.5 this semester to keep my grant program so I stress a lot over grades. I never know how hard an instructor might grade.


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Invisiblepwnasaurus
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Registered: 07/16/08
Posts: 12,317
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Re: Learning Algebra and Calculus by onesself [Re: Thebooedocksaint]
    #19414483 - 01/13/14 09:05 PM (10 years, 17 days ago)

Is a 3.5 88%?  That's going to be difficult with absolutely no physics background.

On a side note I never understood why some universities grade out of 4.  What happened to using percents?  That is what my school did and it makes a hell of a lot more sense.


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OfflineThebooedocksaint
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Re: Learning Algebra and Calculus by onesself [Re: pwnasaurus]
    #19414505 - 01/13/14 09:09 PM (10 years, 17 days ago)

Quote:

pwnasaurus said:
Is a 3.5 88%?  That's going to be difficult with absolutely no physics background.

On a side note I never understood why some universities grade out of 4.  What happened to using percents?  That is what my school did and it makes a hell of a lot more sense.




I just mean like my semester long GPA. So I need to keep at least a 1:1 ration between my A's and B's. If my three other courses were an A I would be able to work with a C in E.P. I've never gotten a grade that wasn't and A in Math or Chemistry since I started College. Then again my education courses most other semesters give me easy-mode A's. :lol:


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Invisiblepwnasaurus
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Re: Learning Algebra and Calculus by onesself [Re: Thebooedocksaint]
    #19414521 - 01/13/14 09:13 PM (10 years, 17 days ago)

Some of the rotational stuff gets a little tricky in physics I.  Physics II had the highest failure rate of any first year engineering course at my school.  Personally I did better in physics II than I though so it's hard to say.  The magnetism unit is relatively difficult in physics II.


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OfflineThebooedocksaint
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Registered: 05/10/09
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Re: Learning Algebra and Calculus by onesself [Re: pwnasaurus]
    #19414594 - 01/13/14 09:31 PM (10 years, 17 days ago)

So, if I were on Kahn academy, sections called "Moments, Torque, and Angular Momentum" and "Electricity and Magnetism" would be the harder sections of the two courses?


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Invisiblepwnasaurus
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Re: Learning Algebra and Calculus by onesself [Re: Thebooedocksaint]
    #19414654 - 01/13/14 09:43 PM (10 years, 17 days ago)

Quote:

Thebooedocksaint said:
So, if I were on Kahn academy, sections called "Moments, Torque, and Angular Momentum" and "Electricity and Magnetism" would be the harder sections of the two courses?



It's been about 5 years since I took that course but I think so.  Link me to the syllabus and I'll look.


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OfflineThebooedocksaint
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Re: Learning Algebra and Calculus by onesself [Re: pwnasaurus]
    #19414764 - 01/13/14 10:06 PM (10 years, 17 days ago)

Physics page

You can click on the sections to see what is included inside each.

I don't have my syllabus for next semester though, it's the only one that isn't posted yet. :shrug:


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Offlineteamkiller
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Re: Learning Algebra and Calculus by onesself [Re: koods]
    #19414794 - 01/13/14 10:14 PM (10 years, 17 days ago)

Quote:

koods said:
I don't know programming any more but

n=0-6

Sin(360/7•n)=x/10
Cos(360/7•n)=y/10
Or
10•Sin(360/7•n)=x
10•Cos(360/7•n)=y

You'll have to offset that to line up at 0,0. That is centered at 0,0





what would i offset it by?  I tried it out and it works nearly well.  I get 4 points kind of close together and then 3 kind of spread out.  its a little more equally distanced with n starting at 1.


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OnlineManianFHS
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Re: Learning Algebra and Calculus by onesself [Re: Thebooedocksaint]
    #19414847 - 01/13/14 10:24 PM (10 years, 17 days ago)

Hey thank you everyone for the suggestions (even the salary side-arguments lol). This has been super helpful. Sloth I will definitely keep you in mind should I have math questions on this very fun road ahead.

Id really love to see an ongoing subforum here for people to chat about what theyre learning, post coding, math equations, etc.. that stuff is so cool. Honestly all this academic talk has jazzed up my neurons, got me all kindsa fuzzy/. Keep it going i could read this stuff all day!!


--------------------
notapillow said: "you are going about this endeavor all wrong. clear your mind of useless fear and concern. buy the ticket, take the ride, and all that.... "

ChrisWho said: "It's all about the journey, not the destination."


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InvisibleI_was_the_walrus
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Re: Learning Algebra and Calculus by onesself [Re: ManianFH]
    #19414876 - 01/13/14 10:31 PM (10 years, 17 days ago)

I've been lobbying for a math forum since the dawn of time. We have a hunting and firearms sub-forum that gets like 2 posts a year. Sup wit dat


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OnlineManianFHS
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Re: Learning Algebra and Calculus by onesself [Re: I_was_the_walrus]
    #19414905 - 01/13/14 10:38 PM (10 years, 17 days ago)

Quote:

I_was_the_walrus said:
I've been lobbying for a math forum since the dawn of time. We have a hunting and firearms sub-forum that gets like 2 posts a year. Sup wit dat




right? (i was just checking out that firearms forum actually :lol:). but yeah haha


--------------------
notapillow said: "you are going about this endeavor all wrong. clear your mind of useless fear and concern. buy the ticket, take the ride, and all that.... "

ChrisWho said: "It's all about the journey, not the destination."


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Offlinestarfire_xes
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Re: Learning Algebra and Calculus by onesself [Re: ManianFH]
    #19415045 - 01/13/14 11:02 PM (10 years, 17 days ago)

You should start with a Schaum's Outline Guide of Precalculus.  They are only about $10 and they have a lot of solved problems.  that should help you learn some concepts because they usually have all the common type problems solved. 

In fact you can get it for next to nothing on Amazon (used)  here's a link...

http://www.amazon.com/Schaums-Outline-PreCalculus-2nd-Series/dp/0071508643

The Schaums outlines of Algebra, Trigonometry, and Calculus are good too.


--------------------
:smug: [/url][/url] 
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Invisiblelessismore
Registered: 02/10/13
Posts: 6,268
Re: Learning Algebra and Calculus by onesself [Re: qbe]
    #19415075 - 01/13/14 11:09 PM (10 years, 17 days ago)

Quote:

qbe said:
Through algebra? It's honestly self explanatory to me, but what are you trying to learn. I'll try and help you out, but every program including everything on your phone does basic algebra for you.

If you know computer programming or what you are trying to self teach then you pretty much know algebra. It's just assigning variables. Nothing more.



there is a little more to college level algebra ;-)

group theory etc. Heh

isnt as pleasant as it sounds / for addicts, only math addicts

same with college level Calculus, good luck learning that by yourself unless you spend a lot of time on it
Calculus is usually proof based
you must know the proof of everything you do

there are no easy proofs in math, and Calculus is there just to teach you that

if you are not a mathematician, you must enjoy pain to some extent to enjoy calculus/algebra
calculus is pretty cool, but algebra was pure pain

if I should recommend some useful maths: linear algebra!
balance between being hard to learn/usefulness ... it is the easiest math you can learn that is useful for a lot of things IMO
you can keep learning it your whole life
love it... its the only math I really love I think, but calculus is pretty cool at times too

there is a matrix for everything, you will dream of matrices
you might be a matrix yourself in a vector space, transforming everything around you

if I projected you over in another universe you would be half the size of here maybe, and up might be down
in other universes you would be round/cylindrical / look really weird maybe

thats why you should read linear algebra


Edited by lessismore (01/13/14 11:30 PM)


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InvisibleI_was_the_walrus
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Re: Learning Algebra and Calculus by onesself [Re: lessismore]
    #19415184 - 01/13/14 11:37 PM (10 years, 17 days ago)

I'm the opposite. I dominated algebra. I hardly ever went to class or studied. It was almost intuitive and I managed to pull off As all around. I struggled for Bs in calc. I'm talking calculus tutor videos, endless chapter reviews, hours spent studying and I never missed a class. I really enjoyed the material though. Shit was just difficult.


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Invisiblelessismore
Registered: 02/10/13
Posts: 6,268
Re: Learning Algebra and Calculus by onesself [Re: I_was_the_walrus]
    #19415199 - 01/13/14 11:41 PM (10 years, 17 days ago)

college=university right?, Im not in the US

anyway, calculus is cool, lots of applications
algebra, no applications ;-)

at least the course I took

its just the proofs that can be a bit hard at times in calculus maybe, the math work is pretty straightforward, you should almost know it beforehand


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Onlinekoods
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Re: Learning Algebra and Calculus by onesself [Re: teamkiller]
    #19415201 - 01/13/14 11:42 PM (10 years, 17 days ago)

Quote:

teamkiller said:
Quote:

koods said:
I don't know programming any more but

n=0-6

Sin(360/7•n)=x/10
Cos(360/7•n)=y/10
Or
10•Sin(360/7•n)=x
10•Cos(360/7•n)=y

You'll have to offset that to line up at 0,0. That is centered at 0,0





what would i offset it by?  I tried it out and it works nearly well.  I get 4 points kind of close together and then 3 kind of spread out.  its a little more equally distanced with n starting at 1.




Hmm. Is your sin function in degrees or radians? It think if you offset the x by -10 it would would start at 0,0.  If sin and cos use radians then change 360/7 to 2π/7.


--------------------
NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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Invisiblelessismore
Registered: 02/10/13
Posts: 6,268
Re: Learning Algebra and Calculus by onesself [Re: lessismore]
    #19415225 - 01/13/14 11:49 PM (10 years, 17 days ago)

if you love programming, linear algebra/fourier transforms is what you should be studying, will blow your mind

its the only math you need to know as a programmer really

no other math course will help you as much as a programmer
you can code games in opengl, they are usually built around vector spaces / matrices in a vectorspace
or picture programs where you can draw shapes etc. via matrices (most picture programs use linear algebra)

or jpeg compression, also matrices

and if you want to read quantum mechanics one day, its almost 100% linear algebra
if you know linear algebra and PDEs, it should be fun to play with

as a programmer you should learn fourier transformations too ofc, lots of applications in everything
mp3 encoding, any sound program almost

mpeg4 / h264 wouldnt exist without linear algebra, so you wouldnt be able to watch tv
without linear algebra/fourier transforms no youtube and no music files online (mp3)

the only way to learn is to get a book, you cant really learn it as good from the internet


Edited by lessismore (01/13/14 11:58 PM)


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Offlineteamkiller
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Re: Learning Algebra and Calculus by onesself [Re: lessismore]
    #19415351 - 01/14/14 12:37 AM (10 years, 17 days ago)

lol because of my audio background i actually know alot more about signal analysis and wave phyics than fucking high school geometry.

i've been working alot lately with 3d css animations so the geometry thing is fucking me.


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Onlinekoods
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Re: Learning Algebra and Calculus by onesself [Re: teamkiller]
    #19415366 - 01/14/14 12:43 AM (10 years, 17 days ago)

Teamkiller, I'm pretty sure the angle should be in radians. That's why the distribution was off.


--------------------
NotSheekle said
“if I believed she was 16 I would become unattracted to her”


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Offlinestarfire_xes
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Re: Learning Algebra and Calculus by onesself [Re: lessismore]
    #19415424 - 01/14/14 01:05 AM (10 years, 17 days ago)

Quote:

mio said:


and if you want to read quantum mechanics one day, its almost 100% linear algebra






No it isn't. Its a whole range of disciplines but if you want to do quantum physics you better have your shit together in statistical analysis and partial differential equations.


--------------------
:smug: [/url][/url] 
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