My Math Forum Introduction

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 September 12th, 2011, 09:36 AM #1 Newbie   Joined: Sep 2011 From: Helsinki Posts: 8 Thanks: 0 Introduction Hey all, My name is Michael, or Mikke. I live in Finland. I'm 24. After sort of shunning maths for the last few years, I'm considering a new career path in engineering. I figured I'd come here to seek general help during the long hard road back to math and such, and maybe help someone else along the way.
 September 12th, 2011, 10:23 AM #2 Global Moderator     Joined: Nov 2006 From: UTC -5 Posts: 16,046 Thanks: 937 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms Re: Introduction Welcome! How much of a career change is this for you? How much math did you manage in your math-shunning stage?
 September 12th, 2011, 10:57 AM #3 Newbie   Joined: Sep 2011 From: Helsinki Posts: 8 Thanks: 0 Re: Introduction I'd say a bit drastic. I originally studied facility management, and currently work in a hotel, but I'm keen on not doing that for the rest of my life. After thinking it over I decided to go with engineering. I didn't really shun math, I just didn't use it a lot during school, except for in accounting and the like. I think after high school the thought of doing a lot of heavy math stuff was off-putting but now I quite fancy the idea of learning all of the rules and what not.
 September 12th, 2011, 12:09 PM #4 Senior Member     Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 465 Math Focus: Calculus/ODEs Re: Introduction Hello! I wish you the best and hope you find our forum helpful in your quest!
September 12th, 2011, 01:09 PM   #5
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Re: Introduction

Quote:
 Originally Posted by Mikke I didn't really shun math, I just didn't use it a lot during school, except for in accounting and the like. I think after high school the thought of doing a lot of heavy math stuff was off-putting but now I quite fancy the idea of learning all of the rules and what not.
Have you taken calculus? Linear algebra (matrices and the like)?

 September 12th, 2011, 10:03 PM #6 Newbie   Joined: Sep 2011 From: Helsinki Posts: 8 Thanks: 0 Re: Introduction Calculus I've had, but after 6-7 years it's rather rusty.
September 13th, 2011, 06:40 AM   #7
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Re: Introduction

Quote:
 Originally Posted by Mikke Calculus I've had, but after 6-7 years it's rather rusty.
Can you multiply x + 2 by 2x + 1?

Can you expand (2x + 1)^3?

Can you find the derivative of 3x^3 + 2x?

Can you find the derivative of sin(x)?

Can you find the integral(s) of x^2?

Can you find the derivative of x * sin(x^2)?

Can you find $\int xe^{x^2}dx$?

Does $\sum_{n=1}^\infty\frac{\sin n}{n^3}$ converge? Does it converge absolutely or conditionally?

Just trying to find how rusty you are.

 September 15th, 2011, 12:31 AM #8 Newbie   Joined: Sep 2011 From: Helsinki Posts: 8 Thanks: 0 Re: Introduction The first two seem familiar, but the latter lot makes my head hurt. :P I've just bought a few refesher books that I'll be studying in-depth from now until the application period.
September 15th, 2011, 04:51 AM   #9
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Re: Introduction

Quote:
 Originally Posted by Mikke The first two seem familiar, but the latter lot makes my head hurt. :P I've just bought a few refesher books that I'll be studying in-depth from now until the application period.
OK, so you need to start somewhere around pre-calc, you probably don't need to take (either of the) algebra (courses) again.

 October 12th, 2011, 06:24 PM #10 Newbie   Joined: Oct 2011 Posts: 12 Thanks: 0 Re: Introduction Welcome!

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