MaplePrimes Questions

Hi all,

I've just started learning Maple. I can't figure it out how to transform my problem into maple syntax.

My problem includes solving a simple algebraic equation, that is,

Y[k+1] = -10*Y[k]

I would like to solve this equation for different values of k, for example, k = 0,1,2,3.

and express my results in terms of Y[0], i.e,.

Y[1] = -10*Y[0];

Y[2] = -10*Y[1] = 100*Y[0]

Y[3] = -1000*Y[0]

I don't know...

hello support,brand new to maple. i am trying to plot the solution for the functions cosx=x. if i set these both like so: y = cosx and y=x.orf:=cos(x);f:=x;it will plot the cosine function.how do i plot these in maple 17, i tried using the graphing calculator also that comes with maple 17 but that for some reason will not allow me to type an equal sign , i looked over the web for a solution.so i pose the question why the graphing calculator will not accept the "=" sign???thanks,noobie craig

hi guys , i want to solve a system of equations but maple gives me "warning, solutions may have been lost" !

what can i do ?

 

thanks

 

z0.mw

How to find the integral

1/(4*Pi)*int((cos(t)-sin(s)-cos(t)*sin(s))/(3+2*(cos(t) - sin(s) - cos(t)*sin(s)))^(3/2),[t=0..2*Pi,s=0..2*Pi])?

Its geometric interpretation suggests the answer is -1. Maple finds the inner integrals both over t and s, but Maple cannot directly find the iterated integrals.

Hi,

 

I'm trying to solve a pretty complex system of equations (a 3rd order DAE with 61 equations) using the MEBDFI numeric solver but I'm always getting the following error.

 

error in dsolve/dae/numeric/sm_intersect. numeric exception, division by zero

 

I have tried to find out what the sm_interesect command is but I haven't had luck neither in Internet nor in Maple help. I have looked for similar posts...

https://skydrive.live.com/redir?resid=E0ED7271C68BE47C!358

1/x!*subs(z=0,Diff(g(z)^x, x$(x-1))) = n*x

1/x!*subs(z=0,Diff(g(z)^x, z$(x-1))) = n*x

how to solve for g(z) ?

as i do not know what do this respect to which variable from a book. so i capture this diagram.

hope that can solve it

L := Summation(Summation(g(m, n)-g(m-1, n)-g(m, n-1), m = 1 .. 3), n = 1 .. 3);

M1 := subs(m=1, g(m, n)-g(m-1, n)-g(m, n-1))=0;

rsolve(rhs(M1),g,'genfunc'(1,b));

Error, invalid input: rsolve uses a 2nd argument, Fcns, which is missing

Reference:

Matrix([[0, g(0,1), g(0,2)],[g(1,0), g(1,1), 0],[g(2,0), 0, g(2,2)]]);

Hi all,

I am looking for a package to calculate the power mean (or Hölder mean) defined like

Mean_p(x_n)=(1/N Sum(x_n^p,n=1..N))^(1/p)

in a hopefully obvious notation. I can obviously implement this definition directly in Maple, but there are subtleties (like the limit of p=0) which maybe a mature implementation already covers (?).

I am still mostly on Maple 15 which does not have such a Mean. If 16 or 17 have it I would not becessarily know.

Hey Forums!

 

Im using maple 16 for some rather simple Engineering calculatioins. One thing about using maple bothers me, and that is the way my result is displayed.

 

Here is an example

Here is another

 

Adding "simplify" or "evalf" sometimes does the trick, but id really like...

I have total nine equations,out of which some are linear and some of them are nonlinear.I am a new user of maple.The nine equations are

c2+vc = .34,

c2+c3 = .519,

t8+c3-c4-vc = .132,

t1+t5-c2+0.0435=0,

t1-t2-c2+c3-1.334*vc = 0,

t2+t6-c3-c4+0.0435+1.334*vc=0,

-112.5*t1+112.5*t5+300*c2^2+1000*vc = 38.25,

112.5*t1-112.5*t2-300*c2^2+300*c3-300*c3^2-2000*vc+23.4 = 0,

-112.8*t8+112.5*t2-112.5*t6+300*c4^2-300*c3+300*c3^2+1000*vc+14.85 = 0

This piece of code returns a vector 'Sinrdensity' with identity entries. what's wrong with it?

restart;
sinrvalue := [seq(10^((1/10)*i), i = -15 .. 25, .5)];

Sinrdensity := Matrix(1, nops(sinrvalue), 0);

task := proc (sinrdensity, initialpoint, endpoint)

local bft, Theta, bound, value;

for value from initialpoint to endpoint do

bft := unapply(1/(1+I*t), t);

for Theta from 0 to 10^10 while is(0.1e-1 <= evalf(abs(bft(2^Theta...

like f# do

 

match(tree)

with| verification('hyporesult'(alpha,beta), 'dedeuceto'('Conj'(alpha,beta),gamma) -> 'hyporesult'('Conj'(alpha,gamma),beta)

 

need to get hyporesult is prefix, and then use if the compare, and get first parameter and second parameter such as for 'Conj'(alpha, gamma)

 

i use typefunc('hyporesult'(alpha,beta)) can not get 'hyporesult'

moreover...

Who knows what Maple does wrong on this one?



T:=Sum(1/(6*k+1)!, k=0..infinity); evalf(T); value(T); evalf(%);

Sum(1/factorial(6*k+1), k = 0 .. infinity)

 

1.000198413

 

(1/6)*3^(1/2)*exp(-1/2)*sin((1/2)*3^(1/2))+(1/6)*3^(1/2)*exp(1/2)*sin((1/2)*3^(1/2))+(1/6)*exp(1/2)*cos((1/2)*3^(1/2))

 

.6739557747

(1)

 



Download sum.mw

Does any one know how to derive this model in Maple?

The_Price_is_Righ.pdf

I did two polar plots as you see and wanted to color the region between them.

> with(plots);
> a1 := polarplot(1, t = 0 .. 6*Pi*(1/3), thickness = 2, filled = true, color = black);
> a2 := polarplot(2*cos(t), t = 0 .. 6*Pi*(1/3), thickness = 2);
> a3 := polarplot(2*cos(t), t = -(1/3)*Pi .. (1/3)*Pi, filled = true, thickness = 2);
> display(a1, a2, a3);

The program makes the region colored red but there is an overlapping part which...

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