There are (at least) two solutions to this problem

1. Update your graphics drivers - Nvidia have rushed out a patch because they admit that their drivers were at fault
2. Change various aspects of your Maple installation

Now explain clearly why you would modify your Maple installation to accommodate some crap graphics drivers, because you now have

1. Crap graphics drivers
2. Unknown/uncertain Maple configuration

when you could just update your graphics drivers, to obtain

1. Functional graphics drivers
2. Standard Maple configuration

Why do you want the crap???

My original response gave all answers for the modulus p varying from 2 to 500 - and you can change the upper value to anything you want, by changing the value of pMax.

You then stated that you don't want to work with a range of values - as in

"How would i do it if the p value was fixed not a range of p values. So i can keep running the program by just changing the p value to something different not a range"

and I provided an answer for that also.

So what 'loop' are you now talking about which I have not provided? Don't give me a Python program (or perl, ruby, matlab, mathematica, C++, C#, VBA, lisp, pascal, fortran, algol, cobol, whatever), just state in English what you want to produce

Try

p:=10:
msolve(x^2 = -1, p);

Obviously, depending on the value of 'p' which you select, there may be no answers. Which is why I thought it was useful (in my original post) to let p vary over a range and return only those cases where solutions existed

Check out the help at ?IterativeMaps:-Bifurcation

One of the examples in this help page is referred to as 'Rossler'

Using assorted workarounds, I can always get the "correct" answer.

However I happen to think that general users should not be given an incorrect answer for relatively obvious Boolean comparisons such as

is( 5*Unit('mm') < 10*Unit('mm'));

Maple 2016 returns 'false' for the above - for which my response is WTF!

At least the 64-bit Win7 version of this driver set works with Maple 2016 and maple 2015

Can't comment on other OS

I should have checked the answers provided by my original suggestion more carefully. I was more concerned with fixing syntax, rather than checking the validity of the returned answers - sorry

The fact that 'is()' returns incorrect answers appears to be due to the inclusion of 'units'

Consider very carefully the statement

is( 5*Unit('mm') < 10*Unit('mm'));

Rather obviously this statement ought to return 'true'.  But actually It returns 'false'. I simply  have no explanation for this.

Now if you ask the alternative question

is( convert( 5*Unit('mm'), unit_free) < convert( 10*Unit('mm'), unit_free));

then this will return 'true'. So that is good.

You may think that converting to unit_free quantities solves all of your problems -errrrrr no! Consider the following carefully

is( 5*Unit('mm') < 1*Unit('m'));
is( convert(5*Unit('mm'),unit_free)  < convert( 1*Unit('m'), unit_free) );

Both are obviously true and both return false

If you have

p := plots:-implicitplot3d(f,....)

then plottools:getdata(p1) doesn't work!! But

seq( op(j, p1), j=1..nops(p1));
dArr:=op([1,1],p1);
dArr[1,1,1..10, 1..4];

will show the underlying information, extract the "data array" and display a few values from it. Note however that this array is just a " grid of values of the form x, y, z, f(x, y, z). It does not contain x, y, z, f(x, y, z)=0.

I assume that this is what is meant by the excerpt from the  Plot3d structures help (my emphasis)

The ISOSURFACE structure contains the samples of a function taken over a regular grid in 3-D space and is rendered as a 3-D surface approximating the zero surface of the function.

SO it seems as if all you can get are the samples - not the rendering of the "zero surface" :-(

I must have misunderstood the question - I though you wanted to keep all terms with degree <=2

Seems as if you want to keep all terms with degree >=2

Still simple to do with select/remove commands however

" the following was from a book i'm trying to learn from but the book dosent include a solution  "

There is no "following" - which makes this post rather pointless

Read my earlier post and do something about it - otherwise you are on your own

As noted in my prvious response, Maple makes it really easy to generate/apply rotation matrices for coordinate transformations

However if you do not understand, or cannot describe in mathematical language),the transformation you want in terms of rotation axis and angle, then Maple will be no help at all :-(

It is trivial to write a,b,c,d as functions of phi - which you seem to want. For example

a:=phi->1/(1-phi)^2.5;

but this seems a bit pointless, since b,c,d all depend on other parameters ( eg rho_s, rho_f, k_f and others ), none of which are defined. Since these "new" parameters are undefined, a,b,c,d cannot be evaluated to numeric quamtities and it will be impossible to solve your ODEsystem numerically

Can only suggest that you supply sufficient information to evaluate a,b,c,d to numeric quantities - otherwise you will get precisely nowhere!

If this is a recent phenomenon, then you might want to read the entry at

http://www.mapleprimes.com/questions/221001-How-Do-I-Remove-All-Files-Associated

particularly if you have an Nvidia Graphics card and have updated your graphics drivers recently

Otherwise (and assuming some flavour of windows) I can only suggest that you check the windows event log and post the error which occurs when Maple doesn't start.

and I posted a correct, accurate answer

In response you post four more questions.

Do you actually believe that I will read each of these and try to figure out what you want because you are too lazy/stupid to post one definitive question? I recommend that you delete three out of your four responses - just leave the one you actually want me to read

The one response you leave should contain only executable code: "pictures" of code will get you no response at all. There are no circumstances under which I am going to retype from a "picture" of code, just beause you are too lazy to do it