Is there a way to use maple to plot the vector field for the differential equation: (x,y)' = ( sin(pi*x) , xy - 1 ) ? Note (x,y)' is a vector, that would normally be written in column form. I'd really appreciate any help you can give, thank you.

I've run into a problem with Maple. When I solve a trigonometric equation, for instance sin(x)=0, it responds with only one solution, even though there are countless. So what I mean is, when I type: solve(sin(x)=0,x) -> x=0 x = 0 is of course correct, but I would really like it to give the general form of the solution for such an equation. My TI CAS calculator responds with this general solution set: x=c*3*pi , where c is a random integer, Z, (any whole number). Is there any way to make Maple give such a respond as well?

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I have an ODE that has to be solved over a range of x .....but i have difficulties in formulating the boundary conditions since i have certain constraints on them.

My B.C 1 is t(x) = c + (c-1)*erf(x)

B.C 2 is t ' (x) = (c-1)*(2/sqrt(pi))*e^-x2

Hi

I want to tell to Maple how much centimers should be the windows of the plot output (or, even better,  of the grid, without considering the labels and title)

So that if I write for ex

I solved IVP of ODE with solutions x(t),y(t),z(t) numerically.x(0)=y(0)=0,z(0)=0.25

How can I get the coefficients of the initial values in x(t)

i.e  assume the solution

x(t)=e1(t)x(0)+e2(t)y(0)+e3(t)z(0)+e4(t)

how can we get :

e1(t),e2(t),e3(t) and e4(t)

 

I want to print A with 2 seconds interval from the moment I call x:=true until the moment I call x:=false.

How can this be done in Maple ?

Hi all.

Ok, I'm trying to save to a file a set of a complex number, a float number and an integer. According to Maple Help this can be done with:

writedata[append]('terminal',[-0.123456-0.123456*I, 0.1334423423*10^(-15),3], float, proc(f,x) fprintf(f,`%a`,x) end proc);

And it works (the numbers are just an example of what I'm trying to do).

The problem is that I want to change the precision of the second number (or to all of them) to say 5 digits. But when I try as the help suggests:

I recieved this comment on an older post of mine, and I was going to post a reply, but I noticed my reply was pretty long, and I was also missing a post for last friday, so I figured I'd cheat and make the reply a blog post of its own.

Hi,

How can I plot two boxes with gnuplot in 3 Dimensions, one small box inside one big box? 
I know that it is possible with 
plot3d(Polygon([[x11, y11], ...[xln, yln]], [[x21, y21], ...[x2n, y2n]], ...[[xm1, ym1], ...[xmn, ymn]])

but how can I do with mathematical equations?
 

How do I use print command to display command such as simplify(..,symbolic)?

 

I have tried

interface(verboseproc=2):
print(simplify);

but this only display simplify command, not  simplify(..,symbolic).

Thanks in advance.

I have a set of simultaneous equations that can be solved using odeplots in Maple.

The problem I have is that i need to understand the chaotic dynamics of this system and to do this i must increase an angle by a tiny amount which boils down to subtracting 1 odeplot from another, how do i do it?

many thanks

f(z):=x^(n)+I y^(n);

diff(f(z), x)=

x^n*n/x

simplify(x^n*n/x)=x^(n-1)*n

 

plot(e^x*tan(x), x = 0 .. 1)

plot(evalf(e^x*tan(x)), x = 0 .. 1)

question2:

sin(0)=0, why this is not sin(0)?

sin(1)=sin(1)?

Hi all,

I need to use the D Operator for the following: