MaplePrimes Questions

Using export to obtain fugures from maple the resolutin is poor. How can I get images with 1000dpi resolution?

How can I find all of the solutions of the equation sinx = (1/8).x ?

Please help me, thank you very much !

Maple 13 does not calculate the definite integral

int(x^4/(4*x^5+2), x=0..1);

although the corresponding indefinite integral is calculated correctly. The reason?

Thank you.

Maple16 on Ubuntu 12.04, 64-bit.  Radeon 4550 video.  plot3d images are kind of split down the middle with left half of the image on the right and right-half on the left, lots of flicker when trying to manipulate with the mouse, surface is monochrome and poorly rendered, crashes maple application if you try to manipulate it too much.

This behavior occurs using the default xorg video driver (not proprietary) and default xorg configuration.  I have not...

Is there a way to type commands in Maple to attach arrows to the graphs without using the plot functionality that is built-in? My professor is asking me to plot a graph and then attach arrows to it. 

After numerically solving an ODE, I want to save the solutions as a .dat file. I got this from the internet net for PDES and tried by adapt it to odes using dsolve. But I get this: Error, `sol` does not evaluate to a module 
PDE := diff(u(x, t), t, t)-(diff(u(x, t), x, x))+.2(diff(u(x, t), t))-1/2*(u(x, t)-u(x, t)^3) = 0;
 IBC := {u(-15, t) = -1, u(15, t) = 1, u(x, 0) = tanh(x), (D[2](u))(x, 0) = -1/cosh(x)^2}; sol := pdsolve(PDE, IBC, 'numeric', u(x, t...

I'm using Maple 16 for OS X (on Lion). The way Maple handles highlighting is very strange; if I want to highlight (and copy or delete) part of an expression, or maybe something nested within a command, it frequently highlights things I don't want it to and never put my cursor near. I expect it's trying to be smart and predict what I want to select, but quite often it makes it impossible for me to do what I actually need to, causing even more hassle. Usually if I want to delete...

restart; b := 6; de1 := diff(f(eta), eta, eta, eta)+f(eta)*(diff(f(eta), eta, eta))-M^2*(diff(f(eta), eta))-(diff(f(eta), eta))^2 = 0, (1+(4/3)*Nr)*(diff(theta(eta), eta, eta))+epsilon*(theta(eta)*(diff(theta(eta), eta, eta))+epsilon*(diff(theta(eta), eta))^2)+Pr*(s*theta(eta)+f(eta)*(diff(theta(eta), eta))+Nb*(diff(theta(eta), eta))*(diff(phi(eta), eta))+Nt*(diff(theta(eta), eta))^2) = 0, diff(phi(eta), eta, eta)+Le*f(eta)*(diff(phi(eta), eta))+Nb*(diff(theta(eta), eta, eta...

 

N:=10:

L:=[]:

for x1 to N do

for y1 from x1 to N do

for z1 from y1 to N do

for x2 to N do

for y2 to N do

for z2 to N do

a:=sqrt((x2-x1)^2+(y2-y1)^2+(z2-z1)^2):

if type(a, positive) and type(sqrt(x1^2+y1^2+z1^2)+ sqrt(x2^2+y2^2+z2^2)+a, integer) then L:=...

I would like to know if it is possible in an external program (C or Python) to create a Maple function ( Not a one liner, maybe a number of lines of Maple code ). Then call Maple to execute a separate Maple function and get the result back.

Someone asked how to create this in Maple. 

I'm trying to use Maple to assist me in my homework.  To me, TI & MsMath are more intuitive than Maple, however, i have a Maple license.  That said, how do i specify an initial condition while trying to solve an ODE using dSolve?  For TI, i would enter:

deSolve(x’=x/25 and x(0)=20,t, x)

... and be done with it.  I suspect that i have to use diff() to assign x/25 as the f(x) of y'.  However, how do i specify the initial condition?

Here is a quick question - Is there anyway to enable full screen mode for Maple on a Mac OS X? I'm currently running Mountain Lion with Maple 16 and will be doing some screencasts and would prefer not to have the menu bar in the videos.

Hi,

I have an inverse kinematics model for a double inverted pendulum. There are multiple solutions for each joint angles due to symmetry and I have to choose the appropriate ones. I thought I can use the previous choices and compare them with the current multiple solutions, so I could choose the ones which are closer to the previous ones. However, since the double inverted pendulum moves in in both region at the equilibrium, this aproach does not work. Could you advise...

I watched a webinar by Dr. Robert J. Lopez, titled "Algebra, Trig, and Precalculus Math – All by Syntax-Free Maple".

In it he says he will give his email at the end if anyone wants the worksheet he is using during the webinar.  

I don't think he ever gave his email and, as a Precalculus teacher, I would really like the worksheet.  Please advise.

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