## Get a taylor series expansion for a 2 variable fun...

I tried

taylor(f(x,d),x=0,d=0,4) but it didn't work. How do I do this?

## Problem combining multiple graphs in Maple 12...

I am having issues combining multiple graphs into one.  I have 2 sets of points that are defined as p1 and p2, and I have 2 functions defined as p3 and p4.  Here is the command & what it gives me when I try to graph them together...

> plots [display](p1, p2, p3, p4);

## Putting values in a matrix - basic question...

Hi everybody, probably a very basic question for most of you! I created a function with 2 lops n=1 to 10 and m=1 to 10. Each loop (n,m) I have a certain value for the local variable Xlocal. I want to know how I can put those value of Xlocal into a matrix. The place where I want to put it is (n,m) Matrix[ (1,1) (1,2)] [(2,1)(2,2)] Thanks a lot

## limit function...

graph the function and explain why the limit does not exist lim((x*y^3)/(x^2+y^6)) with (x,y)-(0,0) any helps

## how to find with maple...

How can i find:

int(x*sinh(x)/sqrt(1-sinh(x)*sinh(x)), x = 0 .. log(sqrt(2)+1))

int(x*sinh(x)/sqrt(1-sinh(x)^2), x = 0 .. ln(sqrt(2)+1))

with maple

## NonlinearFit Parameter Specification...

Hey, I'm using NonlinearFit to find parameterranges in theoretical equations for physical data. however some of the parameter values are being returned as negative values and I need to specify parameterranges but am having trouble doing this.

For example in the equation below I would like to specify that alpha and ro should take on positive values, as otherwise with the curret data set I am using ro is assigned a negative value.

g1 := NonlinearFit(E(F, alpha, ro, .31, 165, e), X, Y, F)

## how does the shape of the graph depend on c?...

investigate the family of functions f(x,y) = e^(c+x^2 + y^2). how does the shape of the graph depend on c? using maple

## surface, tangent line and normal line...

graph the surface, tangent line and normal line for:

xy + yz + xz = 3 (1,1,1). choose the domain so that avoid the extraneous vertical planes.

## graph paraboloid intersect with a plane...

the paraboloid  z = 6-x-x^2 -2y^2 intersects the plane x=1 in a parabola. graph the paraboloid, the parabola and the tangent line at point (1,2,-4). any help.

## Non commutative product...

Hello,   I'm trying to find or simply define an associative and non-commutative product in Maple, with all the possibilities of the product *. The '.' product is only left assiciative, as '&*'.   How would it be possible ?   Thanks !

## Random number generator - limited on positive numb...

Hello together, I want to generate 1000 random numbers. I know the function for normally distributed numbers: X1 := random[normald[mu[1], sigma[1]]] The problem is: 1. I want only positive numbers (but exactly 1000)... 2. I want to set a lower(mu minus 3*sigma and upper limit (mu plus 3*sigma) Thanks for your help!

## Group 2D coordinate system into squares...

Hi, I possess values for X and Y in an intervall 1 .. 100 . For each combination (X,Y) you get a Z value of 1,2,3 or 4. Depending on the value Z each coordinate (X/Y) in the 2D CS should be displayed in form of a square (if Z=1 ->blue, Z=2->red,Z=3->yellow, Z=4->black). As a result I have to receive a kind of landscape with colored squares. Thanks a lot!

## Change of Basis

Maple
Hi! The following worksheet considers two methods for using given bases to find the change-of-coordinate matrices and coordinate vectors. One method uses matrix manipulation and the second uses the solving of systems of equations. The worksheet uses a Brief Review to describe both processes and the examples are used to show you how to use both processes as well as to illustrate how they are related.

Maple

Hi!

This worksheet contains three examples that show you how to:

• Obtain the quadratic form
• Obtain the matrix of quadratic form
• Diagonalize the quadratic form to transform it into a