I am just a beginner to use Maple and now I have a second order linear equation with boundary conditions to solve. I want to get the numerical solutions and plot the solutions. However, I have tried many times, and still do not get the solution. So I want to ask for help. my eqaution is simple but just sort of long. y"(x)=4-8(1-2/r)(1/r**3+1/r**2), here r=43.48arctan(0.05x-1.23)+41.1, The input of my program in Maple is: restart; sol:=dsolve({diff(y(x),x$2)=((1-2/(43.48*arctan(0.05*x-1.23)+41.1))((43.48*arctan(0.05*x-1.23)+41.1)^(-3)+(43.48*arctan(0.05*x-1.23)+41.1)^(-2))*8-4)*y(x),y(-2)=-0.65,y(40)=-0.11},y(x),numeric);

I am just a beginner to use Maple and now I have a second order linear equation with boundary conditions to solve. I want to get the numerical solutions and plot the solutions. However, I have tried many times, and still do not get the solution. So I want to ask for help. my eqaution is simple but just sort of long. y"(x)=4-8(1-2/r)(1/r**3+1/r**2), here r=43.48arctan(0.05x-1.23)+41.1, The input of my program in Maple is: restart; sol:=dsolve({diff(y(x),x$2)=((1-2/(43.48*arctan(0.05*x-1.23)+41.1))((43.48*arctan(0.05*x-1.23)+41.1)^(-3)+(43.48*arctan(0.05*x-1.23)+41.1)^(-2))*8-4)*y(x),y(-2)=-0.65,y(40)=-0.11},y(x),numeric);

How do I use Matrices to solve linear equations?

I'm using Windows XP prof. edt. and Maple 9.5 I installed Maple and it is running properly but there is an important problem with the user-interface of Maple ; For example, scroll bars,check boxes,sliders. . . can not be seen on the interface. Therefore, for instance in the "Options", I can not understand whether a checkbox is checked or not. (The most important part of the problem :( ) I've already installed Java VM (jre1.5.0_06) What should I do ?

hey please help me out in the programming part of rtc ds1307 with 8051.......... i want to initiate the sec on the register of rtc and i want to see the output on port1 . do i need to connect sda and scl to RXD and TXD of 8051.As i am connecting these lines to port 2 of 8051.please help me and i wnat the program in asm language. Anand

I used to have Maple 10.02 running on Fedora Core 4. I recently upgraded to Fedora Core 5, and 10.02 no longer runs (no error is given). I can't install Maple 10 off the CD or the downloaded 10.03.

Let A be an n by n (0,1)-matrix. How draw the graph of the adjacecy matrix A?

Do you think that it's possible for Maple to ever be free software? I
suppose I should emphasise that this is "free as in freedom",
regardless of whether Maplesoft decides to keep charging money for its
use or not. Me, I don't see it happening in the near future, but I
harbour hope that it could happen for the following reasons:

1) Other success stories of free software, such as the Firefox
browser.

2) Maple, unlike the other leading brand, was built in a purely
academic environment by a community of mathematicians and
scientists who understand the need for free and open collaboration

server: efnet channel: #maple this channel is unaffiliated with maplesoft. It is new at the time of this posting so be patient if there is not much activity at first. I know a bit about maple and may be available to help people with it. If you have never used IRC before it is not difficult. You may want to read about it a little by googleing IRC. if you just want to connect I have posted instructions about connecting to this and other math related channels on IRC at this link: http://web.mac.com/luther_driggers/iWeb/SFUMSU/NEWS/50430B9A-5AAD-48DC-B53B-A5565C352F70.html

Hi. Hope someone can help me. I have attached a file, created in Maple 10.02 (the Java version). The file seems to be corrupted, since every time i try to open it, I get the following error message: "File open!" "There were problems during the load process. Your worksheet may be incomplete." No input or output is displayed in maple, eventhough the fileize is 552KB. I tried then to open the file with classic worksheet maple 10 and the console, and with both the Java and classic worksheet version of Maple 9.5, still to no avail. If i open the worksheet in notepad or similar, I can tell that the code is still existing.

I did some complecated calculation for cloth simulation. When I get the value from C++ Maple API, it is 1.#QNAN. But when I get the result from Maple, the value is following: (-0.6205772259e-2-0.2125843006e-1*I)*(Pi-1.928059303+5.979053727*I)+0.2356552645e-2*(Pi-1.928059303+5.979053727*I)^2 What is the meaning of 'I' in the result? I am dying to solve the calculation without 1.#QNAN.

Hi all, I have a thirdgrade equation and I wish to find the values when f(x)=0 So I have typed in the equation as well as f(x)=0 and wish for maple to give me the intersect points for L:=2*x^3+6*x^2-2*x-6:M:=0:plot([L,M], x=-4..2, y=-7..7); With the help of the help section I then add P:=Intersect(L,M); But I just get the equation read back to me. The answer I am looking to be displayed is -3,-1,1 How do I get maple to do this? Thanks in advance :-)

Ignore this posting. The question was answered already in comp.soft-sys.math.maple. The problem was the use of point as the first argument of rotation. Change the two lines

> rotation(point,P,evalf(theta),el);
> coordinates(%);

to

> rotation(PP,P,evalf(theta),el);
> coordinates(PP);

and the procedure will work.

--Edwin
-------------------------------------------------------------------

When I execute the procedure Rot below it works fine the first time but a second execution gives an error message? Is there a way to fix this problem? I have to do a restart to make it work again.

View 162_Mode vs. stats[describe, mode].mw on MapleNET or Download 162_Mode vs. stats[describe, mode].mw

MaplePrimes own Jim Herod has a wonderful set of lecture notes—accompanied by a collection of Maple worksheets—which introduce linear operators on infinite-dimensional Hilbert spaces to beginning graduate students in science and engineering. Entitled Linear Algebra, Infinite Dimensions, and Maple, these notes were developed from a one quarter course which Prof. Herod taught many times at the Georgia Institute of Technology. The notes are very concise and have been refined and improved many times over the years in response to student feedback.