Math Forum / Math Software / Maple / February 2005

Dealing with PDE ,how to impose a boundary cond. in a limit form?
lim (f(x,y),x=infinity) =x+1
thank!

I have a parametric curve that additionally depends on two constants.
Something like
x1(c1,c2,t) and x2(c1,c2,t).
t is the parameter, c1 and c2 are the constants. How can I plot this curve

I am really struggling with this.  Maybe I am just not good at
geometry, so I hope someone can help.
Okay here is my problem.  I have the equation:
r=1+cos(theta)

Is there a way that I can take a curve in 2D such as the equation of a
parabola and rotate it about an axis in 3D to make a solid
Thanks

P:=2^(24036583)-1:
Error, object too large
?!?!

Consider:

                                    2
                                   d

To install Maple 8, we have the following script:
#!/bin/sh
# Copyright (c) 1996-2002 by Waterloo Maple Inc.
# All rights reserved. Unauthorized duplication prohibited.

first of all, the following peiece is not work in my 9.5 xp
but it is main essance of my question
----------------------------------------------------------
---------------------

I am trying to get Maple to calculate things like 10.3 mod 1 = 0.3 but this
function only seems to work for integers. Is there a corresponding function
to easily do this?
Thx Maarten

Hi all. I am plotting (using DEplot3d) non-autonomous systems
xdot=f(x,y,t), ydot=g(x,y,t), zdot=1, where zdot is just the time. xdot
and/or ydot are periodically forced, so that the zdot direction can be
considered to be periodic. Is there a way to plot this so that the

In working with matrices, Maple returns an answer in a matrix and I
want to then sum the individual rows and columns.
specificaly I am constructing projection matrices by
Q:=X*(X^T*X)^-1*X^T

I can't find the solution online, can anyone help? I am running a
maple program using "batch mode", as a simple example, I edit a file
"vi input.mw",
-----------------

Hello,
 I want to know how to solve the following integration problem in Maple 8:
                 /
                |  

can anybody tell me what happens here:

                              sin(a) + b
                    expr := ---------------

Well, just for the records:
Maple 9 is unable to execute this:
fsolve(min(x+51580800.0,5652700000.0,x+51580800.0+.8585358682e13/x^(1/2))
= 4368842661., x, 1684100000.0 .. 5652700000.0);