Recent content by gpax42

Thank you for the helpful response :smile: since I'm plotting the loglog of the difference between my final population values(global error) that resulted from halving my h-value, i believe youre correct in noting that my graph should have a slope of 1. This, however, begs the question of...

I'm trying to calculate the error of the Trapezoid Method in my population approximations for wolves and moose over time given certain parameters. Ultimately what i need to do is perform a series of trapezoid approximations using different 'h' values. Each successive 'h' value I use is half...

ahhh I see... when I separated variables, however, I found... \intdP/[P(1-P/k)] = \intrdt I then manipulated the left side to read K/[P(K-P)] ... after partial fractions... = 1/P + 1/(K-P) int[1/P + 1/(K-P) )dP] = int[rdt] following through with integration leads to...

Hi all, it's been a over a year since I took my differential equations and linear algebra course and I'm currently enrolled in a class that assigned this problem as a sort of refresher on analytically solving differential equations. I can't seem to remember the proper approach to going about...

When I attempted the problem I managed to get C = -1, A = 4 and B = 2... any idea if this is right? I multiplied through to get a common denominator and then set the numerators equal to one another. A(x+1)(x) + B(x-1)(x) + C(x2-1) = 5x2+2x+1 I distributed and found... Ax2 + Ax +...

i think i got it to work correctly... here's my code... ----------------------------------------------------------- function board = makeBoard(rows,cols) for rowIndex = 1:rows for colIndex = 1:cols board(rowIndex,colIndex).type = '-'; end end for index = 1:.1*rows*cols...

thanks for the great advice :smile:... I wrote out the code for the algorithm. My first for loop looks something like this... function board = makeBoard(rows,cols) for rowIndex = 1:rows for colIndex = 1:cols board(rowIndex,colIndex).type = '-'; end end for index...

Not sure if anyone here is familiar with MATLAB programming. I am supposed to create a structured array (resembling a game board) that acts as a predator/prey simulator. The user needs to specify the size of the game board. Within the gameboard I am supposed to represent a couple of different...

A number in MATLAB by default uses how much memory? my professor asked me this question today and I wasnt sure. In MATLAB I assigned a random number to the variable x >> x = 5.5623 and then used the "whos" command to determine how many bytes were stored. According to "whos", the...

A number in MATLAB by default uses how much memory? my professor asked me this question today and I wasnt sure. In MATLAB I assigned a random number to the variable x >> x = 5.5623 and then used the "whos" command to determine how many bytes were stored. According to "whos", the...

Homework Statement Suppose that Gaussian Elimination gives the soluiton of a Linear System Ax=c as x = x0 + a1x1 + a2x2, where A is a 6X6 matrix and a1 and a2 are arbitrary. Is the matrix A invertible? Explain The Attempt at a Solution I simply explained that due to properties of an...

ooo alright, thanks for all the helpful explanations =D

is it D = dt2/[(5/2)t2-(3/2)]

Homework Statement Show that the functions po(t)=1, p1(t)=t, p2(t)=1/2(3t2-1), and p3(t)=(3/2)*[(5/3)t3-t) also form a basis for the vector space P3(R) ... "R" meaning all real numbers Homework Equations I know these polynomials are the first four Legendre polynomials The Attempt...

My class learned about row operations today but I didn't think to apply them because I began this problem yesterday... Thanks for your advice :biggrin: