Operations Definition and 317 Threads

It seems like i had problems in this software operations. It seems like i can't get what i suppose to get after the conversion. Here i attach some pics for ur view and some rtf files which i convert them. http://members.fortunecity.com/darkar/pf/table.rtf...

Hi, I am having problems with proving the double containment argument for the following problems. I would appreciate any feedback. Thanks. Compute \bigcup (i \in I) Ui and \bigcap (i \in I) Ui if a. I=N, the set of all positive natural numbers and U_n = (-n,n) \subseteq R (U_n is the open...

Hello I have to preform the operations and simplifying it. This is what i have \frac{1}{x}+\frac{1}{x-2}+\frac{3}{(x-2)^2} =\frac{3x^2-7x+8}{x(x-2)(x-2)} Is this correct?? Where do I go from here? Thanks P

Hi everybody, I would like to find proofs for the algorithms that we use to calculate sums,products,quotients... For example I would like to see how the long division algorithm is proved. Do you know any sites that have such proofs? Any help would be appreciated Thanks

Hi everybody, In vector spaces we define two operations, addition and scalar multiplication. Scalar multiplication is distributive over addition. This can define the order of operations in the vector space? I mean when we have an expression to calculate, we know that we firstly calculate...

Is it possible to do vector operations in polar coordinates?

Is it possible to do vector operations in polar coordinates?

Hi everybody, I want to ask some things about the order of operation. Of course I have heard and used PEMDAS! First of all i want to make this clear: we say that first we should calculate the parentheses: in order to do so we also use PEMDAS in each parenthesis to calculate it's value? I am...

Array operations in Matlab? Is it possible to apply operations to the rows of a matrix as an array? Such as I have a matix A which is 30 rows by 1 column and I want to treat each row as a vector such that I can solve for the polynomial roots of each row using the roots comand (treating each row...

My Real Analysis textbook says: Let f,g: D --> R be two functions of common domain D that posses a limit at x_0 an accumulation point of D. Then, f/g as a limit at x_0 and this limit is the quotient of the limit of f to the limit of g, as long as g \neq 0 \ \forall x \ \epsilon \ D and that the...

Do you think you could do vector operations in polar coordinates?

Greetings! I am asked to do the following: Simplify (A^{-1}B)^{-1}(C^{-1}A)^{-1}(B^{-1}C)^{-1} for (n x n) invertible matrices A B and C. You see, I was able to show that the result of this is simply the identity matrix I_n by selecting 3 (2x2) matrices A B and C that were invertible...

What are the Local operations and classical communication that i keep hearing about? It arises in quantum teleporting. Though i know that to perform quantum teleporting you need a classical channel (a phone line, an e-mail, etc) and I guess that classical communication refers to that, I still...

I understand why two of the three row operations do not change the solution set of a system: 1. Interchange two rows. (Doesn't make much difference in what order one decides to write down the linear equations does it?) 2. Multiply a row by a scalar. (This step doesn't change the solution...

I know that there are some shortcuts to make math operations. For example When you multiply 11 and another number (23 for exaple) you just write those two numbers like this: 2 3 and then sum them "2+3=5" and the result you write it in the middle...

[SOLVED] Binary Operations I believe I understand the critera to see of something is a "group" 1.It must be binary 2.It must be associative 3.Must contain a Identity 4.Must have a inverse My question is the how to read a problem. For example: All real numbers minus zero under the...

I came across this site: http://mally.stanford.edu/tutorial/sentential.html It lists four axioms of "sentential" logic. I first would like to know if there are other axioms not listed here. Wouldn't you need some axiom like if P is true, then ~P is false? It seems difficult to prove the law...