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- 10:32, 26 January 2009 (diff | hist) . . (+120) . . N Truth value (New page: A '''Truth value''' can be either T (for true) or F (for false). Category:MA375Spring2009Walther Category:MA375) (current)
- 10:30, 26 January 2009 (diff | hist) . . (0) . . m MA 375 Spring 2009 Walther Definitions
- 10:30, 26 January 2009 (diff | hist) . . (+605) . . MA 375 Spring 2009 Walther Definitions
- 10:29, 26 January 2009 (diff | hist) . . (+2) . . Negation
- 10:29, 26 January 2009 (diff | hist) . . (+89) . . N Negation (New page: The ''negation'' of a proposition is the opposite truth value of the proposition.)
- 10:15, 26 January 2009 (diff | hist) . . (+162) . . N User:Dafletch (New page: Way to go :) You're doing a good job with definitions so far. If you have any questions, you can post them on (User_talk:Norlow) like you would a normal page.) (current)
- 10:14, 26 January 2009 (diff | hist) . . (+1) . . m User:Norlow (current)
- 10:14, 26 January 2009 (diff | hist) . . (+43) . . N User talk:Norlow (New page: Here is where you post questions to ask me.)
- 10:13, 26 January 2009 (diff | hist) . . (+318) . . N User:Norlow (New page: Hey -- I'm Nate Orlow and will try to pop in on the course pages from time to time. I have a pretty good understanding of many of the math classes here at Purdue, and a good knowledge of w...)
- 10:01, 26 January 2009 (diff | hist) . . (0) . . MA375 (WaltherSpring2009) (I decreased the size of "no credit" -- from an outsider's perspective it seemed huge.)
- 07:24, 26 January 2009 (diff | hist) . . (+432) . . N First Order Equation (MA366) (New page: A first order differential equation can be written as <math>\frac{dy}{dx}=f(x,y)</math> where f is some function that depends on x and y. One simple example is the equation <math>\frac{dy...) (current)
- 07:15, 26 January 2009 (diff | hist) . . (+16) . . Separable equation (MA 366) (current)
- 07:14, 26 January 2009 (diff | hist) . . (+5) . . Separable equation (MA 366)
- 07:13, 26 January 2009 (diff | hist) . . (+28) . . Separable equation (MA 366)
- 07:12, 26 January 2009 (diff | hist) . . (+7) . . Separable equation (MA 366)
- 07:11, 26 January 2009 (diff | hist) . . (+903) . . N Separable equation (MA 366) (New page: Category:MA366 If an equation <math>M(x,y)dx+N(x,y)\frac{dy}{dx}=0</math> can be written in the form <math>M(x)dx+N(y)\frac{dy}{dx}=0</math> (in other words, M depends on only x, and ...)
- 21:27, 21 January 2009 (diff | hist) . . (+2) . . MA375 (WaltherSpring2009)
- 21:21, 21 January 2009 (diff | hist) . . (+20) . . Transpose (current)
- 21:20, 21 January 2009 (diff | hist) . . (+304) . . N Transpose (New page: The transpose of a matrix is the result when you represent the columns as rows. The transpose of a matrix A can be represented as <math>A^T</math>. For example, <math>\begin{bmatrix} 1 & ...)
- 21:16, 21 January 2009 (diff | hist) . . (+20) . . Determinant
- 21:15, 21 January 2009 (diff | hist) . . (+1,105) . . N Properties of the Determinant (New page: * The determinant of any identity matrix is always 1. * If you switch the rows or columns of a matrix, its determinant stays the same. * If you multiply a row (or column) of a matrix (call...)
- 21:12, 21 January 2009 (diff | hist) . . (+4,718) . . N Determinant (New page: The determinant of a square matrix A, written det(A) or |A| is a number associated with a matrix. For the 2x2 and 3x3 case, the geometric meaning is the area/volume between the vectors. If...)
- 21:05, 21 January 2009 (diff | hist) . . (+154) . . MA375 (WaltherSpring2009)
- 20:51, 20 January 2009 (diff | hist) . . (+471) . . N Topic Pages (New page: It makes sense to have pages which define concepts for a class in a category that only depends on the class. I created several pages on MA351, but haven't contacted either professor for th...) (current)
- 12:03, 20 January 2009 (diff | hist) . . (+65) . . N Category:Rhea Organization (New page: Here are the pages which deal with how to organize pages on Rhea.) (current)
- 12:02, 20 January 2009 (diff | hist) . . (+2,212) . . N Separating similarly named concepts (New page: Category:Rhea Organization ==Problem (Separating similarly named concepts)== One feature of using Rheamerge is being able to share pages. For example, a page explaining induction for...) (current)
- 11:40, 20 January 2009 (diff | hist) . . (+12) . . Uniqueness of Pages
- 11:39, 20 January 2009 (diff | hist) . . (+1,435) . . N Uniqueness of Pages (New page: Category:Rhea Organization Problem: (Uniqueness of pages) Users in the MA375 are posting new pages such as "6" -- referring to Problem 6 on their homework. One can imagine this will...)
- 13:37, 19 January 2009 (diff | hist) . . (+1) . . m List of Course Wikis
- 13:37, 19 January 2009 (diff | hist) . . (-2) . . List of Course Wikis
- 13:35, 19 January 2009 (diff | hist) . . (+426) . . N Basis (New page: In linear algebra, vectors <math>v_1, v_2... v_n</math> form a basis for <math>R^m</math> when *The vectors span <math>R^m</math>. (in other words, the span of the vectors is <math>R^...)
- 13:23, 19 January 2009 (diff | hist) . . (+22) . . MA351
- 12:34, 19 January 2009 (diff | hist) . . (+1,863) . . N Linear transformation (New page: A linear transformation T (on a vector <math>\overrightarrow{v}</math>) is a transformation that can be represented as a matrix A times <math>\overrightarrow{v}</math>. The linear transfo...)
- 12:12, 19 January 2009 (diff | hist) . . (+1,080) . . N Image (linear algebra) (New page: The image of a linear transformation or matrix is the span of the vectors of the linear transformation. (Think of it as what vectors you can get from applying the linear transf...)
- 12:06, 19 January 2009 (diff | hist) . . (+20) . . Span (current)
- 12:06, 19 January 2009 (diff | hist) . . (+272) . . N Span (New page: The span of vectors <math>v_1, v_2... v_n</math> is the set of all possible linear combination of those vectors. A vector <math>\overrightarrow{x}</math> is in the span of <math>v_1, ...)
- 12:01, 19 January 2009 (diff | hist) . . (+722) . . N Kernel (linear algebra) (New page: A vector v is in the kernel of a matrix A if and only if Av=0. Thus, the kernel is the span of all these vectors. Similarly, a vector v is in the kernel of a [[linear transformati...)
- 11:55, 19 January 2009 (diff | hist) . . (+2) . . m MA351
- 11:53, 19 January 2009 (diff | hist) . . (+93) . . MA351
- 11:52, 19 January 2009 (diff | hist) . . (+691) . . N MA351 (New page: '''Note:''' This page covers MA351 in general. If you wish to create a course page, for the Course List, please see Help:Contents. == Linear Equations and Linear Transformations==...)
- 11:26, 19 January 2009 (diff | hist) . . (+425) . . Main Page (Undo revision 19869 by Chen55 (Talk))
- 11:25, 19 January 2009 (diff | hist) . . (-39) . . Main Page (Undo revision 19872 by Chen55 (Talk))
- 11:24, 19 January 2009 (diff | hist) . . (+105) . . N User talk:Chen55 (New page: You inadvertently changed the main page. If you want to change your user page, check out User:Chen55) (current)
- 14:50, 18 January 2009 (diff | hist) . . (+862) . . N Inner product (New page: The usual inner product (also called "dot product") between two vectors is multiplying the components and then summing the results. For example, the inner product of <math>\begin{bmatrix}2...) (current)
- 14:29, 18 January 2009 (diff | hist) . . (+299) . . N Orthogonal (New page: Two vectors u and v are orthogonal if <math>u*v=0</math>, where u*v denotes the inner product of the two vectors. They are orthonormal if they both are also unit vectors (<math>u*u=1</...)
- 14:28, 18 January 2009 (diff | hist) . . (+20) . . Linear combination (current)
- 14:26, 18 January 2009 (diff | hist) . . (+192) . . N Linear combination (New page: A linear combination (of <math>v_1...v_n</math>) is some sum of multiples of those vectors. For example, <math>3v_1+2.3v_3-5.4v_4</math> is a linear comination of <math>v_1,v_2,v_3,v_4</ma...)
- 14:22, 18 January 2009 (diff | hist) . . (+270) . . N Exactly when (New page: "Exactly when" is another way to say "If and only if", In other words when "statement A is true" implies "statement B is true" and "statement B is true" implies "statement A is true", then...) (current)
- 14:18, 18 January 2009 (diff | hist) . . (+20) . . Linearly Independent
- 14:18, 18 January 2009 (diff | hist) . . (+544) . . N Linearly Independent (New page: A (finite) set of vectors <math>v_1, v_2...v_m</math>is said to be linearly independent if and only if the equality <math>k_1v_1+k_2v_2+...k_mv_m=0</math> is true exactly when all the ...)
- 14:15, 18 January 2009 (diff | hist) . . (+31) . . N Category:MA351 (New page: MA351 Elementary Linear Algebra) (current)
- 14:14, 18 January 2009 (diff | hist) . . (+20) . . Matrix
- 14:13, 18 January 2009 (diff | hist) . . (0) . . Zero vector (current)
- 14:13, 18 January 2009 (diff | hist) . . (0) . . Scalar (current)
- 14:06, 18 January 2009 (diff | hist) . . (+20) . . Entry (current)
- 14:05, 18 January 2009 (diff | hist) . . (+20) . . Scalar
- 14:04, 18 January 2009 (diff | hist) . . (0) . . Zero vector
- 14:04, 18 January 2009 (diff | hist) . . (+20) . . Subspace
- 14:04, 18 January 2009 (diff | hist) . . (+20) . . Zero vector
- 14:03, 18 January 2009 (diff | hist) . . (+159) . . N Scalar (New page: A scalar refers to the usual idea of a number. It is called a scalar to emphasize it's "one dimensional" as opposed to a vector which can be multi-dimensional.)
- 13:58, 18 January 2009 (diff | hist) . . (+246) . . N Zero vector (New page: The zero vector is a vector of all zeros <math>\begin{bmatrix}0 & 0 & ... & 0\end{bmatrix}</math> In several definitions, one has to be careful to take the zero vector into account. For e...)
- 13:55, 18 January 2009 (diff | hist) . . (+453) . . N Subspace (New page: A subset (call it W) of vectors is a subspace when it satisfies these conditions: * W contains the zero vector * If two vectors u and v are in W, then U+v must also be in W. (This is ...)
- 13:54, 18 January 2009 (diff | hist) . . (+287) . . N Entry (New page: An entry (for a matrix) is one element in that matrix. It can be written as a lower case letter, with subscripts showing its row and column in the matrix. For example, in the matrix M= <m...)
- 13:49, 18 January 2009 (diff | hist) . . (+2) . . Matrix
- 13:48, 18 January 2009 (diff | hist) . . (+883) . . N Matrix (New page: A matrix can be thought of as an array of numbers. It is usually denoted by a capital letter (such as M), and each component (called an entry) can be denoted <math>M_{ij}</math> where ...)
- 13:44, 18 January 2009 (diff | hist) . . (+1,851) . . N Matrix Multiplication (New page: Matrix multiplication of "m by n matrix" <math>A_{mxn}</math> by "p by q matrix" <math>B_{pxq}</math> can be defined exactly when the dimensions n and p are equal. (It doesn't make se...)
- 08:22, 16 December 2008 (diff | hist) . . (+1,088) . . N Nate's Christmas List MA375Fall2008walther (New page: I am going to go the Hobbes route here. I have several wishes less attainable, I'll wish for ones that are more in my reach. * A more universal project Rhea. (Attainable -- Project Rhea v...) (current)
- 08:12, 16 December 2008 (diff | hist) . . (+48) . . Wish Lists MA375Fall2008walther
- 06:55, 11 December 2008 (diff | hist) . . (-50) . . Main Page MA375Fall2008walther
- 06:55, 11 December 2008 (diff | hist) . . (+19) . . Math Club Lecture TODAY MA375Fall2008walther (current)
- 07:06, 10 December 2008 (diff | hist) . . (+123) . . Final Exam Page MA375Fall2008walther
- 19:19, 8 December 2008 (diff | hist) . . (+64) . . Main Page MA375Fall2008walther (→Lecture Notes)
- 06:40, 6 December 2008 (diff | hist) . . (-2) . . Main Page MA375Fall2008walther (→Links to other pages)
- 06:40, 6 December 2008 (diff | hist) . . (-1) . . Main Page MA375Fall2008walther (→Links to other pages)
- 06:40, 6 December 2008 (diff | hist) . . (+45) . . Main Page MA375Fall2008walther (→Links to other pages)
- 06:38, 6 December 2008 (diff | hist) . . (+151) . . 9.7 Problem 7 MA375Fall2008walther (current)
- 06:33, 6 December 2008 (diff | hist) . . (+56) . . New: Carnival Game Antics MA375Fall2008walther (current)
- 06:32, 6 December 2008 (diff | hist) . . (+230) . . New: Carnival Game Antics MA375Fall2008walther
- 06:30, 6 December 2008 (diff | hist) . . (+186) . . Final Exam Page MA375Fall2008walther
- 19:56, 23 November 2008 (diff | hist) . . (+55) . . P = NP MA375Fall2008walther
- 19:56, 23 November 2008 (diff | hist) . . (+429) . . P = NP MA375Fall2008walther
- 11:19, 18 November 2008 (diff | hist) . . (+193) . . RandomQuestions MA375Fall2008walther (→Generating Functions)
- 11:17, 18 November 2008 (diff | hist) . . (+80) . . RandomQuestions MA375Fall2008walther
- 15:50, 16 November 2008 (diff | hist) . . (+123) . . Final Exam Page MA375Fall2008walther
- 13:10, 10 November 2008 (diff | hist) . . (+19) . . Main Page MA375Fall2008walther (→Assignment 10: Due 11/13)
- 12:09, 10 November 2008 (diff | hist) . . (+92) . . Midterm solutions MA375Fall2008walther (→Midterm Problem 3)
- 14:32, 8 November 2008 (diff | hist) . . (+65) . . Midterm solutions MA375Fall2008walther (The numbers in part 2 were not accurate. Also, there are only 24 ways to get all three aces (4*3*2) thus the final count has been adjusted.)
- 14:23, 8 November 2008 (diff | hist) . . (0) . . Main Page MA375Fall2008walther (→After Midterm)
- 14:22, 8 November 2008 (diff | hist) . . (+224) . . Main Page MA375Fall2008walther (→Ideas for posting)
- 14:15, 8 November 2008 (diff | hist) . . (+580) . . 9.2 Problem 26(a-d) MA375Fall2008walther (current)
- 14:09, 8 November 2008 (diff | hist) . . (+54) . . 9.2 Problem 44 MA375Fall2008walther (current)
- 14:09, 8 November 2008 (diff | hist) . . (+278) . . 9.2 Problem 44 MA375Fall2008walther
- 14:10, 31 October 2008 (diff | hist) . . (+22) . . Midterm Page MA375Fall2008walther (→Discussion)
- 14:10, 31 October 2008 (diff | hist) . . (+502) . . Midterm Page MA375Fall2008walther (→Discussion)
- 14:03, 31 October 2008 (diff | hist) . . (+44) . . Main Page MA375Fall2008walther (→Links to other pages)
- 14:03, 31 October 2008 (diff | hist) . . (+22) . . Midterm solutions MA375Fall2008walther
- 14:02, 31 October 2008 (diff | hist) . . (+851) . . N Midterm solutions MA375Fall2008walther (New page: I'll put links here if anyone wants to provide solutions to the midterm. ==Midterm Problem 1== Call An the number of binary strings of size n without double zeroes. We can put each of th...)
- 17:24, 26 October 2008 (diff | hist) . . (+148) . . N 7.4 Problem 20 MA375Fall2008walther (New page: Can someone explain the solution to this problem? I remember him covering something like that in class but don't really understand how this fits in.) (current)
- 07:13, 22 October 2008 (diff | hist) . . (-37) . . Midterm Page MA375Fall2008walther (Undo revision 911 by Norlow (Talk))
- 06:58, 22 October 2008 (diff | hist) . . (+37) . . Midterm Page MA375Fall2008walther
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