Hello,

Is it possible to create animation of convolution of two functions?

For example f(t)=u(t)-u(t-2) and g(t) = tu(t)-(t-4)u(t-4), where u(t) is a step function.

I would like to generate animation for this convolution.

Any help would be appreciated.

Thanks.

Download Discovery_with_Maple.mw

Does anyone know how to using some softward convert ?  for example  I have maple code , but I want to using mathematica code .I need fast way.

I have 16 running on 32 bit xp computer, but I cannot install on 64 bit m/c with windows 8.1.

Have tried -r ,-f, -i options as in install.html, but install log says nothing installed.

How do I install ?

Download series.mw

series.mw

I cannot make Maple 13 read the maple.ini file no matter where it is located.

I am using Windows 7, 64 bit.

I thought that ...maple 13\bin.win would do it.

The file contains a few commands of mine. Three of these commands

"read" three procedure files A.m, B.m C.m. respectively, and the other two

are

with(LinearAlgebra):
with(DEtools):

Could somebody up here direct me properly about this?

I would appreciate it.

Thank you!

mapleatha

There is no menu item called "Startup Code"

in the "Edit" menu item of my Maple 13.

Please help!

Thanks!

I would like to create a variable name that consists of a greek letter and an english letter. For example, δx.   If I type

>delta = 5;

Maple displays the output as δ = 5

However, I would like to have variable names that are output as δx.

Is there a way to do this in worksheet mode? I tried cat(delta,x) but that just gave me deltax.

Thanks for your help,

Harish

hi friends

i have a problem in maple with an error

dsnumsort:=proc(numpr::list,coor::list)
local i,j,n;
global C1,C2,C3,V1,V2,V3;
n:=nops(coor):
print("Order of the variables:");
for i from 2 to 2*n +1 do
for j from 1 to n do
if[numpr[i]]=
select(has,numpr,diff(coor[j](t),t)) then
C[j]:=i-1;V[j]:=i;
print(coor[j],C[j]," ",diff(coor[j](t),t),V[j]);
fi;
od;
od;
end :

Us:=subs(G=1,m=1,L=1,U):
D2r:=[diff(z(t),t,t),diff(x(t),t,t),diff(y(t),t,t)]:
g:=subs(z=z(t),x=x(t),y=y(t),grad(Us,[z,x,y])):
IniC:=z(0)=0.75,D(z)(0)=0, x(0)=1,D(x)(0)=0,y(0)=0,D(y)(0)=1:

Ns:=dsolve({seq(D2r[i]=g[i],i=1..3),IniC},{z(t),x(t),y(t)},numeric);

dsnumsort(Ns(0),[z,x,y]):

for i from 0 to 1000 do ;
T:=i/25;
NsT:=Ns(T):

X[i]:=rhs(NsT[C1]); Vx[i]:=rhs(NsT[V1]);
Y[i]:=rhs(NsT[C2]); Vy[i]:=rhs(NsT[V2]);
Z[i]:=rhs(NsT[C3]); Vz[i]:=rhs(NsT[V3]);

KepVec[i]:=convert(crossprod([X[i],Y[i], Z[i]],[Vx[i],Vy[i], Vz[i]]),list);
KepAbs[i]:=norm(KepVec[i],2);
od:

but i see this error and I can't draw PLOT:

Error, invalid input: rhs received Ns(0)[C1], which is not valid for its 1st argument, expr

this cods is for draw plot:

spacecurve({[seq([X[i], Y[i], Z[i]], i = 0 .. 1000)], [[-1/2, 0, 0], [1/2, 0, 0]]}, labels = ['x', 'y', 'z']);

spacecurve([seq(KepVec[i], i = 0 .. 1000)], orientation = [0, 90], labels = ['x', 'y', 'z'])

plot([seq([(1/25)*i, KepAbs[i]], i = 0 .. 1000)], labels = ['t', 'MofI'])

can you helpe me?Thank you

I have a surfdata-plot which - by interpolation - goes through different circles with different inclinations with respect to each other. The surface is color-coded with zhue from violet to red. In order to see the valleys behind peaks I would like to have a filled 2D-plot of my zhue-surfdata colors with contours wherever the surface passes z-coordinate integers located somewhere below the surface (e.g. at z=-7). Unfortunately, I haven't found examples of contourplots for surfdata plots so far.

Download Worksheet_Surfdata-contourplot.mwWorksheet_Surfdata-contourplot.mw

When trying to plot "Example1" from this page www.rhitt.com/courses/227/su99/Maple/html/surfaces2.html I get an error message that Maple cannot make a plot structure from an object with the transformation proc( (x,y) -> [x,y,-.3] end proc) . How can I plot this example?

Helo Dears, I need help to generate a vector whose detail given below

`for `K:=1 and m:=3 i need [[[psi[1,0]],[psi[1,1]],[psi[1,2]]]] and for K:=1 and m:=4 i need [[[psi[1,0]],[psi[1,1]],[psi[1,2]],[psi[1,3]]]]

`similarly for `K:=2 and m:=3 i need [[[psi[1,0]],[psi[1,1]],[psi[1,2]],[psi[2,0]],[psi[2,1]],[psi[2,2]]]] and for K:=1 and m:=4 i need [[[psi[1,0]],[psi[1,1]],[psi[1,2]],[psi[1,3]],[psi[2,0]],[psi[2,1]],[psi[2,2]],[psi[2,3]]]]

Simply I need to generate a general vector for arbitrary values of k and M as discus in above.

New_Wavelet_with_Operational_Matrix.mw

We're starting on indefinite integrals in my 1st year calculus class.

A quick example would be int(sin(x), x);=-cos(x)+C

Maple doesn't add the +C on the end of it's solution. Can someone explain or point me to a resource? I've tried searching but I can't find an answer. 

I have the following functions: and 

I want to differentiate e(a,A) wrt A and I keep getting the following error

Error, invalid input: ln expects its 1st argument, x, to be of type algebraic, but received [gamma/(c(A)^(sigma*phi)-1+gamma)].

Not sure how to proceed.

Thanks in advance for your help.

Hello there,

I have, of late, experienced some funny output when using the DifferentialGeometry package.

The command DGsetup retuns vector fields and 1-forms with stars enclosed in back primes attached to them. The same predicament occurs as a result of an operation (evalDG) but only when the vector or the form is not multiplied by a scalar.

This phenomenon does not occur with Maple 17!

Has anyone experienced such a phenomenon and how has they fixed the issue (providing it is an issue).

Many thanks in advance.

Kind regards,

Freddy Baudine

Here's the file:

DiffGeo_potential_issue.mw