what does index mean in maple? for example, if i had RootOf(20+60Z+335Z²+825Z³+1629Z⁴+2520Z⁵, index=3) ?

I'd expect the following to give the result "c+2".

> c := a+b

> simplify(a+b+2)

How can I let Maple know that I'd prefer it to write "c" in place of "a+b" when possible?

Hi! I'm new to Maple. Is there a better way to represent matrices? This is what I've done so far, but the indices (C11, C12, n1, etc) look a little weird and superfluous. Am I doing it the "Maple way"?

Examples:

C=Matrix([[C11,C12],[C12,C22]])

The result of the following lines in Maple is V := [5., 3.,5. 11., 6.] that I think should be V := [5., 3.,5. 0., 6.], is there somthing wrong?

v1:= Vector([-28., -63., -17., -55., 17.], datatype= float[8]):

V:= LinearAlgebra:-Modular:-Mod(11, v1, float[8]);

bug.mw

I have three vectors a, b, c. Knowing that the scalar of product a . b = 1, a. c = 1, b.c=1 and modul of a equal to 1, modul of b equal to 4 and modul of c equal to 4. Now I consider two vectors u = -6*a + b + c and v = 3*a -4*b + c. How to find the angle of two vectors u and v?

Hello, Please how do I compute cdf of student t distribution in maple Tξ+1(.). I have a function that i nvolves student t distribution but finding it difficult to compute student t in the funcion. I am new to maple.

Hi all,

I tried to create the*.exe file by C and call the kernel of maple for calculation.

To understand the OpenMaple, I ran the OpenMaple C code sample, “simple.c” in “<Maple>\ samples\OpenMaple\simple” through Microsoft Visual C++ 2008 but got the incorrect result:

It’s seems that the error is happen due to the wrong maple directory. But according to the description of "kernelopts" in help, the value of mapledir cannot be set.

Refer to the description of  "OpenMaple,Examples" in help , both header file path and library file path had been set:

O/S: Windows (32-bit)

Header file Directories: "C:\Program Files\Maple 17\extern\include"

Library Directories: "C:\Program Files\Maple 17\bin.win"

Environment Variable: "C:\program files\Maple 17\bin.win"

I'd appreciate any help on this topic. Thank a lot.

Dear Maple experts:

I have a very simple question:

I have a polynomial p(x) with integer coefficients and a prime p.  I want to reduce the exponents of this polynomial mod p.  So for example, if p(x) = 1 + x^3 + x^17 + x^19 and p is 17. Then I want Maple to output 1+x^3+1+x^2.

I know how to reduce the coefficients mod p, but not the exponents. Can someone suggest how I might go about doing this.  Thank you very much for your help.

Best wishes

Sunil

if ((a.d-b.c)=0) then print([0,0,0,0])
fi;
MARK:=(a,b,c,d)->[d/(a.d-b.c),-b/(a.d-b.c),-c/(a.d-b.c),a/(a.d-b.c)];

How can I get solution of  the following equation of orbit for schwarzschild BH in form of Jacobi Elliptical Integrals on Maple 12 platform,

diff(r(phi), phi) = r^2*sqrt(e^2-(1-2*M/r)*(1+l^2/r^2))/l

I'm simplifying this Reynolds Equation starting from here:

Reynolds:=Diff(p(x)*h(x)^3/(12*mu)*Diff(p(x),x),x)-u(x)/2*Diff(p(x)*h(x),x)+Diff(p(x)*h(x)^3/(12*mu)*Diff(p(x),z),z)=Diff(p(x)*h(x),t):

Then I apply the dchange command:

dchange({p(x)=P(X)*Pa,x=Lx*X,h(x)=H(X)*h2},Reynolds,{P,h,X,u,H});

The problem is that it expands the new derivatives and I need the equation in its compact form.

How do I tel Maple only to make the substitution but not to expand the result?

I know that it expands by default, can I modify that?

Hi I have been trying to get the inperpolation of some values within a procedure without much success. Maybe someone in mapleprimes might know this already.

Basically what I am trying to do is to generate a matrix of values. The values of the columns 1 to 3 are just some values, but then I want column 4 to be the result of the interpolation of some values.

I got different errors such as: 

Error, (in CurveFitting:-ArrayInterpolation) data must consist of real, floating point values

Anyway the procedure is shown below:

InterProc := proc ()

local i; global A, global variable1, global variable2;

A := Matrix(1 .. 4);

variable1 := [0, 100];

variable2 := [12, 20];

with(CurveFitting);

for i from 1 to 10 do

 A(i, 1) := 3+i;

 A(i, 2) := 2*i+A(i, 1);

 A(i, 3) := A(i, 2)-1;

 A(i, 4) := ArrayInterpolation(variable1, variable2, A(i, 1));

end do;

end proc;

InterProc();

M:= Matrix ([[a,b], [c,d]])

If a.d-b.c=0 then print (Matrix(2)); else print (Matrix ([[(d/a.d-b.c), (-b/a.d-b.c)], [-c/a.d-b.c, a/a.d-b.c]]); end if;

I don't understand where I have gone wrong. If anybody could help I would be greatly appreciative

Thank you

Has anyone used Maple for Empirical Mode Decomposition ? Any tips, Maple docs ? I can't seem to find anything when searching Maple sites.

I have recently written a maple program to deconvolute gamma-ray spectra using the Richardson-Lucy algrithm. Although this method works well I would prefer to use a method based on the Maximum Entropy algorithm, and would like to know if anyone has tried to write a Maple program to deconvolute 1 dimensional data?