Hardest math class you've taken?

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KillerCharlie

Diamond Member
Aug 21, 2005
3,691
68
91
Originally posted by: Engineer
Calculus II.

Calculus III and D.E. were both easier.

I thought Calc 2 was harder than those as well. I'm specializing in aerodynamics so vector calculus is pretty straightforward and easy to apply.

I was going to take a math course in partial differential equations... where all they do is tell you they can't be solved. Instead I took a course in computational fluid dynamics and went about solving them... numerically of course.
 

CycloWizard

Lifer
Sep 10, 2001
12,348
1
81
Originally posted by: KillerCharlie
I thought Calc 2 was harder than those as well. I'm specializing in aerodynamics so vector calculus is pretty straightforward and easy to apply.

I was going to take a math course in partial differential equations... where all they do is tell you they can't be solved. Instead I took a course in computational fluid dynamics and went about solving them... numerically of course.
There are lots of ways to solve PDEs... They're just not happy.

Currently taking finite element analysis, which is basically a lot of math and numerical solutions of PDEs to model solid and fluid dynamics.
 

Soccer55

Golden Member
Jul 9, 2000
1,660
4
81
Originally posted by: archcommus
All I know is I keep screwing up my integration by parts problems!!

If you're having a problem figuring out what u and dv should be, use LIPET.

-Tom
 

archcommus

Diamond Member
Sep 14, 2003
8,115
0
76
Originally posted by: Soccer55
Originally posted by: archcommus
All I know is I keep screwing up my integration by parts problems!!

If you're having a problem figuring out what u and dv should be, use LIPET.

-Tom
What is it?

EDIT: Googled it, thanks!
 

RaiderJ

Diamond Member
Apr 29, 2001
7,582
1
76
Originally posted by: Astaroth33
It's been a long time, but I'd say the calculus one where you do integrals and derivatives of infinite series.

That was calc 3 for me, but I think calc 2 for most. In comparision Diff Eq was much easier/more fun.
 
Aug 10, 2001
10,420
2
0
Vector calculus. Some schools call it calculus 4. I once tried to take a real analysis class, but after a few weeks I gave up because I didn't know what the heck was going on.
 

AbAbber2k

Diamond Member
Mar 1, 2005
6,474
1
0
Calc 2, though apparently I have to take a stats class for my BS. Not sure how hard it'll be in comparision.
 

50

Platinum Member
May 7, 2003
2,717
0
0
Taking Calc AB this year as a senior in HS...it has been pretty easy so far. I never knew other schools offered AP calc courses as juniors, I hate the limitations my school puts on us in terms of course selection!
 

alphatarget1

Diamond Member
Dec 9, 2001
5,710
0
76
linear algebra, lowest grade i have gotten in college so far (C).

Will be taking PDE sometime in the future, heard it's one of the hardest classes in undergrad.
 

Soccer55

Golden Member
Jul 9, 2000
1,660
4
81
Originally posted by: Random Variable
Originally posted by: archcommus
Okay I cannot integrate ln (2x+1) dx for the life of me. Dammit what am I doing wrong.

integrate by parts

No, you don't need integration by parts. Try a regular u substitution with u=2x+1.

-Tom
 
Aug 10, 2001
10,420
2
0
Originally posted by: Soccer55
Originally posted by: Random Variable
Originally posted by: archcommus
Okay I cannot integrate ln (2x+1) dx for the life of me. Dammit what am I doing wrong.

integrate by parts

No, you don't need integration by parts. Try a regular u substitution with u=2x+1.

-Tom

That will work only if you know that the integral of ln(x)= x*ln(x)-x
 

FeuerFrei

Diamond Member
Mar 30, 2005
9,144
929
126
linear algebra, I believe, if grade was any indication

I somehow managed A's in Calc 2&3
 

Soccer55

Golden Member
Jul 9, 2000
1,660
4
81
Originally posted by: Random Variable
Originally posted by: Soccer55
Originally posted by: Random Variable
Originally posted by: archcommus
Okay I cannot integrate ln (2x+1) dx for the life of me. Dammit what am I doing wrong.

integrate by parts

No, you don't need integration by parts. Try a regular u substitution with u=2x+1.

-Tom

That will work only if you know that the integral of ln(x)= x*ln(x)-x

Well, I knew that

-Tom
 

everman

Lifer
Nov 5, 2002
11,288
1
0
Intermediate microeconomics last year was rather challenging, even the econ majors seem to loathe it. I wish we did more game theory though.
 
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