## Code derivative boundary conditions...

I would like to be able to code boundary conditions of the following type: u[x](0,t)=0 and u[x](1,t)=4 where u[x] is differentiating u with respect to x. I can code for non derivative boundary conditions using a for loop. Is the process similar? I have tried to find some examples on the internet but can't find any.

## Drag 'n' Drop Plots...

I follow the instructions in the User Manual section 5.2: Dragging to a Plot Region To use the drag-and-drop method, use the plot region created by one of the other methods or insert an empty plot region into the document. Empty plot regions can be two-dimensional or three-dimensional. Advantages of the drag-and-drop method include the ease of adding and removing plots and the independence from plotting command syntax. 1. From the Insert menu, select Plot, and then 2D. 2. Enter the expression sin(x) in an input region. 3. Select the full expression in the input region and drag it into the plot region.

## Boolean matrices in Maple

by: Maple
Hi, I was wondering, how the Boolean matrices can be operated (multiplied, added etc) in Maple? Can we find their eigenvalues etc? Your reply would do great help to me. Many Thanks. Athar Kharal

## VectorCalculus[TangentPlane]...

```with(VectorCalculus):

TangentPlane( x^2+y^2, x=a,y=b);

Error, (in VectorCalculus:-TangentPlane) 2 independent variables
are required

```
However this is copied from the Help, last example, (2.8). What wrong in this example? Thanks, Sandor

## how can i do this..?...

greeting, i have a little trouble and getting under pressure.. i found how to "plot" circle using smartpot; i found how to get two curves into one graph by with(plots): f1:=plot(3*x^2,x=-4..4, color=orange): f2:=plot(-3*x^2+40,x=-4..4,color=blue): display(f1,f2); but i can't get things like two circles into one (i tried combining with(plots) combined with smartplot.. can anyone advise me for the case i can't find the answer? thanks

## power series in maple 10...

hi i know a little bit about maple, i am able to input commands for it to solve non-power series equations but i do not know how to input commands for solving equations involving the Sine Integral fucntion, Si (x) thanks in advance

## Solving Equations...

Im new to maple and im stuck! How would i "Calculate an approximate real solution, correct to 10sigfig, of hte equation x^3+x-1+0"? Thanx x

## solving transcendental eqns with restrictions

by: Maple
Hi All. To find all solutions to a trig eqn in Maple 11 you do the following (See attached file). My question is what commands do I use in Maple 10 to replicate the Maple 11 results. M11 is too slow on my machine. (in M10 all i get is error message "solutions lost"). rgds View 2735_Solutions with restrictions.mw on MapleNet or Download 2735_Solutions with restrictions.mw

## Implicit Plot with Trig...

Hi guys, I'm currently using Maple 10, however, I can't seem to plot this function: >implicitplot(cos(x+y)=xy^2,x=-2..2,y=-2..2); When I press enter, it just says: "Error in implicit plot could not evaluate expression." Anyone know?

## Define function on different intervals...

How do I define a function on different intervals? For example, how to define y(x): y(x) = f(x) for x=a..b g(x) for x=b..c Hope anyone can help

## matrix storage ?...

Using maple 10, when I store say a 15 x 1 matrix I get the placeholder (1..15 Vector[column], Datatype=anything....) When I close the document and open it back up, all af the data I typed in is gone. What's up with this?

## write a procedure to solve a given tridiagonal sys...

I am trying to gain some experience in maple coding, frankly I'm terrible so a tutor has kindly set me some tasks. He wants me to write a procedure for solving any tridiagonal system of equations. Here is his brief: Write a procedure to solve a given tridiagonal system of equations. Use lists to input the coefficients and do NOT use matrices and/or Maple arrays. The procedure can then be called at every time step. This will also be more involved. After a bit of research I know this is the starting matrix: b1x1 + c1x2 = d1 a2x1 + b2x2 + c2x3 = d2

## Analytic Functions and matrices...

I am trying to find a easy way to use analytic functions with matrices. For example A:= 2x2 matrix (that is diagonalizable) then cos (A) = P L P^1 where P is the matrix made of the eigen vectors and L is the matrix of eigen values along the main diagonal. While I can work these problems by figuring the parts (P L P^1) I would prefer to find a way to be able to just write cos(A). I figure there is a syntax that I am failing to use properly to use this function with a matrix input. Any help would be appreciated.

## Analytic Functions and matrices...

I am trying to find a easy way to use analytic functions with matrices. For example A:= 2x2 matrix (that is diagonalizable) then cos (A) = P L P^1 where P is the matrix made of the eigen vectors and L is the matrix of eigen values along the main diagonal. While I can work these problems by figuring the parts (P L P^1) I would prefer to find a way to be able to just write cos(A). I figure there is a syntax that I am failing to use properly to use this function with a matrix input. Any help would be appreciated.

## series approximations

by: Maple
find the small x series which approximates

(tan(x)log(1+x))/X

by plotting the function and the series approximations investigate how accurate this approximation is over the range 0<x< Pi/2 when different numbers are included in the series

i have no clue where to start can anyone help me please???
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