Math Forum / Mathematics / Undergraduate Math / July 2009

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Hi everybody, Im going to write this question exactly how it is worded.
A line is considered to be normal to a curve y=f(x) at the point (x,y) if the line is perpendicular to the tangent line, tangent to y=f(x) at the point (x,y). Consider the function f(x)=x^4. What is the ...

Hello community, I have another couple of questions that I would love some help on.
1. Let f(x)= 0 if (1/x) is not an integer
            x^2 if (1/x) is an integer.
           Is f(x) continuous?

Im going to write this problem exactly how it is written.
HArvey discovered an amazing and perfectly spheical goo that is precisely cuberoot (296) or 296^(1/3) inches in diameter. No mater how much air is pumped into the center, it maintains its perfect spherical shape, of uniform ...

I live in a reality where people are dedicated in claiming none of my
research is of value, so of course, I'm intrigued by Google search
results that appear to contradict them.  Yes, I can understand how
people can attack Google search results as well.

Hello, this is Annie.
I am studying abroad soon so now am searching for the classes that I
could take in University I will be going to. I found this Physics
class and the prof posted syllabus already. However, he just posted

Ok, so it seems a simple enough refutation of standard teaching on
Galois Theory to consider in the ring of algebraic integers:
x^2 - 6x + 35 = 0
and let x = y + 35, to get:

I have a surface with this equation Z=exp(-Ky)sin(Wx)
I want determine K,W x and y so that I can see the sinus wave in the surface.I mean I want values that are acceptable and I can see a figure, shape of figure is not important, I just want a usual range for  K,W,x and y
thanks ...

Having thought up the example of using:
x^2 - 6x + 35 = 0,
x = y + 35
and

I have some questions about Galois Theory.
In the ring of algebraic integers consider the simple quadratic:
x^2 - 6x + 35 = 0
The solutions are non-rational, and traditional view by Galois Theory

The issue of the "perfect tweet" can help some of you see two
remarkable things which I see a lot on the sci.math newsgroup:
1.  People lie a lot, or maybe I should say, give falsehoods in even
the most obvious areas.

I have to make a simple compound interest calculation:
x = is the amount we pay each month
n = is number of months we pay
now I have to calculate the compound interest at rate r in n months (we calculate it for each month separately).

I am looking to purchase a good textbook on Complex Analysis.  I know this forum is frequented by some 'big-wigs' and I was hoping some of you could suggest a good one.  Obviously, I'm looking for the best of both worlds, something that is accessible for independent study that is ...