I'm trying to insert $(x_0,y_0)$ into a Maple plot (that's how LaTeX would be written). I want to do this with a Maple command rather than creating the plot then hand-tailoring with mouse clicks. This is what I've tried without success:

p1:=plot(sin, -Pi..Pi,-1..1):

t1:=textplot(Pi/2,0.9,something):

display(p1,t1)

For *something* I've tried such as

Typesetting:-typeset(try)

and

typeset(try)

where try is something like (x[0],y[0]) and [(x[0],y[0])] and similar forms.

No joy! Any help appreciated.

I have the following function

where A,B,Ψ, K1,K2,K3,α,β are all constants.

How to find the value of m for which the above expression is 0 or approximate to 0 for different values fo the constants.

e.g., Fixing all the parameters except A, I want to find the values of m for different values of A. How to do that in maple?

I hoped that Maple would return the value of 1 in all commands (see below). However, introducing a scaling parameter, sigma, yields the unevaluated expression. Why? I still think it should evaluate to the value of 1.

kind regards,

Harry (not a mathematician, but a psychologist)

integral.mw

Can anybody where I can find collection of third party Maple packages?

One site that I know is

http://cpc.cs.qub.ac.uk/

Regards

we have positive number from 1 to 1000. how many time we write number 3?

How to increase the size of toolbar icons in Maple 2015 32-bit Classic on Windows?

Hello everyone! I got some trouble in process a list. Hope you can help:

Assume i got a list like this:

{{k = k, l = RootOf(_Z^2+_Z*k+k^2-1), o = -k-RootOf(_Z^2+_Z*k+k^2-1)}, {k = k, l = RootOf(_Z^2+_Z*k+k^2+1), o = -k-RootOf(_Z^2+_Z*k+k^2+1)}, {k = 0, l = 1, o = -1}, {k = 0, l = -1, o = 1}, {k = 1, l = 0, o = -1}, {k = 1, l = -1, o = 0}, {k = -1, l = 0, o = 1}, {k = -1, l = 1, o = 0}, {k = RootOf(_Z^2+1), l = 0, o = -RootOf(_Z^2+1)}, {k = RootOf(_Z^2+1), l = -RootOf(_Z^2+1), o = 0}}

Now all i want is remove Complex and RootOf from this list, how can i do that?

Thank for your reading adn your help!

I have the following expression

f=u/(sqrt(u*(u-1)))

and I want to simplify it. Eventhough that I tell Maple that u is real and greater than 1 but it does not simplify the expression. What is wrong? Please see the attached file.

Radical.mw

How I can sketch the helix with parametric equations x=2cost  y=sint  z=t  and the line with parameric equation x=-2t  y=1  z=(pi/2)+t   on a three-dimensional coordinate system?

How I can graph parabolic cylinder y=x^2 and elipsoid x^2+4y^2+4z^2=16 on a three-dimensional coordinate system?

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a1:= f(x) :
> T1 :=simplify((taylor(a1,x=alpha,N+3))):
> E1:=subs([seq(((D@@i)(f))(alpha) = 0,i=1..m-1),f(alpha)=0,x=e[n]+alpha],T1):
> g1 :=(convert(simplify(series((E1,e[n]=0,N))),polynom));

Hi,

I am trying to evaluate an integral and expecting an expression as a result. But the following code does not provide expression.

I am geting

I need help.

Thanks.

Hello,

I need to plot these functions in two different plots. (Profit_A and Profit_B together, Profit_AA and Profit_BB together).

The file is attached. plot_new.mw

I need to use these constant:

P[A]: 0 to P[B]-0.01 (with 0.01 increments)

P[B]: 0 to 0.50 (with 0.01 increments)   P[A] is always less than P[B] These are probabilities

p=1,

w[u] = 0.8,

w = 0.5,

v=0.5,

D[A] = 1000,

D[B] = 1000,

H = 2500,

thanks. I played around, and had problems implementing your ideas for one of the systems I'm interested in.I don't see a difference between this and what you had advised me on, but it gets an error.

any idea why?
or how to fix it?

thing1 := diff(B[1](t), t) = piecewise(t <= 500, 0.3e-2-(63/10000)*B[1](t)-(3/500)*B[2](t), -(3/10000)*B[1](t)):
thing2 := diff(B[1](t), t) = piecewise(t <= 500, 0.1e-1-(1/50)*B[1](t)-(13/625)*B[2](t), -(1/1250)*B[2](t)):
sol := dsolve({thing1, thing2, B[1](0) = 0, B[2](0) = 0}, {B[1](t), B[2](t)}, numeric, output = listprocedure); plots:-odeplot(sol, [B[1](t), B[2](t)], t = 450 .. 550);

Error, (in dsolve/numeric/DAE/explicit) unable to obtain the standard form of the DAE system due to the presence of leading dependent variables/derivatives in the piecewise: piecewise(t <= 500, 1/100-(1/50)*B[1](t)-(13/625)*B[2](t), -(1/1250)*B[2](t))-piecewise(t <= 500, 3/1000-(63/10000)*B[1](t)-(3/500)*B[2](t), -(3/10000)*B[1](t))
Error, (in plots/odeplot) curve is not fully specified in terms of the ODE solution, found additional unknowns {B[1](t), B[2](t)}