Lindsey's Math stuff.

Subject: Lindsey's Math stuff. Tue Jul 15, 2008 12:38 am

I'll be posting problems and chattering here about problems I'm making myself solve. Smile

For some reason I want to keep my mind fresh lately, hence the new section and numerous new threads throughout the site. I LOVELOVE math now that I don't have to take any more courses on it.

If you ever saw Stranger than Fiction, you'd remember the bit about Harold's favorite word being "integer". I on the other hand loathed this word through out my math courses.

Integers
Numbers that are greater than zero are positive numbers. Every positive number has an opposite that is a negative number (a number less than zero). The set of zero and the natural numbers (the most basic numbers used to count objects: 1, 2, 3, 4 and so on...) with their opposites gives the set of integers Z (being the symbol for integer)= {...., -3, -2, -1, 0, 1, 2, 3, .....}. We can illustrate the size or magnitude of a number (in relation to other numbers) using a number line.

Any number that corresponds to a point on the number line is called the coordinate of that point. When we want to note a specific location on the line, a bold dot is userd and a capital letter is assigned to the location. We have then graphed the number. Since we only need one coordinate to denote a location on the number line, we call it a one-dimensional graph.
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Religion must remain an outlet for people who say to themselves, "I am not the kind of person I want to be." It must never sink into an assemblage of the self-satisfied.

Subject: Re: Lindsey's Math stuff. Tue Jul 15, 2008 1:36 pm

Word phrases and Algebraic Expressions

An algebraic term is a collection of factors that may include numbers, variables, or parenthesized groups. Here are some examples:

1.3
2.-6P
3.5xy
4.-8n²
5.n
6.2(x + 3)
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Religion must remain an outlet for people who say to themselves, "I am not the kind of person I want to be." It must never sink into an assemblage of the self-satisfied.

Subject: Re: Lindsey's Math stuff. Tue Jul 15, 2008 2:29 pm

If a term consists of a single nonvariable number, it is referred to as a constant term. In (1), 3 is a constant term. Any term that contains a variable is called a variable term. We call the constant factor of a variable term the numerical coefficient or simple the coefficient. The coefficients for (2), (3), and (4) are -6, 5, and -8, respectively. In (5), the coeeficient of n is 1, since 1·n=1n=n. The term in (6) has two factors, 2 and (x + 3). The coefficient is 2.
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Religion must remain an outlet for people who say to themselves, "I am not the kind of person I want to be." It must never sink into an assemblage of the self-satisfied.

Subject: Re: Lindsey's Math stuff. Thu Aug 07, 2008 3:43 pm

The math lessons have slowed. I lent my book to a guy who needed it. :*(
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Religion must remain an outlet for people who say to themselves, "I am not the kind of person I want to be." It must never sink into an assemblage of the self-satisfied.