Dkunb

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1 years, 24 days

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These are questions asked by Dkunb

The loop for HFS _data_2 and SFS_data_2 and the loop for HFS _data_3 and SFS_data_3 do not seem to be terminated. I do not know what it is the issue here. Anyone who can help this?

Negativity_(v12_beta_gamma_mu).mw

Thank you in advance,

restart;

A:= Matrix();

A := Matrix(1, 0, {})

(1)

i_choices:= [seq(i,i=0..10,1)];

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

(2)

j_choices:= [seq(j,j=0..10,1)];

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

(3)

for i in i_choices do:
 for j in j_choices do:
   A[i,j] :=i+j;
   print(A[i,j]);
 od:
od;

Error, Matrix index out of range

 

Download test_Matrix.mw

I want to check whether the last expression is zero symbolically in maple. I am trying to learn how to calculate symbolically in Maple. Any suggestion would be very appreciated.


restart;

with(Physics);
with(Physics[Vectors]);

[`*`, `.`, Annihilation, AntiCommutator, Antisymmetrize, Assume, Bra, Bracket, Check, Christoffel, Coefficients, Commutator, CompactDisplay, Coordinates, Creation, D_, Dagger, Decompose, Define, Dgamma, Einstein, EnergyMomentum, Expand, ExteriorDerivative, Factor, FeynmanDiagrams, FeynmanIntegral, Fundiff, Geodesics, GrassmannParity, Gtaylor, Intc, Inverse, Ket, KillingVectors, KroneckerDelta, LeviCivita, Library, LieBracket, LieDerivative, Normal, NumericalRelativity, Parameters, PerformOnAnticommutativeSystem, Projector, Psigma, Redefine, Ricci, Riemann, Setup, Simplify, SortProducts, SpaceTimeVector, StandardModel, SubstituteTensor, SubstituteTensorIndices, SumOverRepeatedIndices, Symmetrize, TensorArray, Tetrads, ThreePlusOne, ToContravariant, ToCovariant, ToFieldComponents, ToSuperfields, Trace, TransformCoordinates, Vectors, Weyl, `^`, dAlembertian, d_, diff, g_, gamma_]

 

[`&x`, `+`, `.`, ChangeBasis, ChangeCoordinates, Component, Curl, DirectionalDiff, Divergence, Gradient, Identify, Laplacian, Nabla, Norm, Setup, diff]

(1)

 

 

 

H[s]:=sum(Norm(p_[n])^2/2/m+U(q_[n]),n=1..s)+(1/2)*sum(sum(V(q_[i]-q_[j]),j=i..s),i=1..s);

sum((1/2)*Physics:-Vectors:-Norm(p_[n])^2/m+U(q_[n]), n = 1 .. s)+(1/2)*(sum(sum(V(q_[i]-q_[j]), j = i .. s), i = 1 .. s))

(2)

H[N-s]:=sum(Norm(p_[n])^2/2/m+U(q_[n]),n=s+1..N)+(1/2)*sum(sum(V(q_[i]-q_[j]),j=s+1..N),i=s+1..N);

sum((1/2)*Physics:-Vectors:-Norm(p_[n])^2/m+U(q_[n]), n = s+1 .. N)+(1/2)*(sum(sum(V(q_[i]-q_[j]), j = s+1 .. N), i = s+1 .. N))

(3)

 

 

Download Ch3.mw
 

 

 

 

I wonder if there is any way to use ArrayInterpolation with contourplot or similar effect?

N_data.xlsx 

Thank you in advance,

restart;

with(CurveFitting)

[ArrayInterpolation, BSpline, BSplineCurve, Interactive, LeastSquares, Lowess, PolynomialInterpolation, RationalInterpolation, Spline, ThieleInterpolation]

(1)

with(plots);

[animate, animate3d, animatecurve, arrow, changecoords, complexplot, complexplot3d, conformal, conformal3d, contourplot, contourplot3d, coordplot, coordplot3d, densityplot, display, dualaxisplot, fieldplot, fieldplot3d, gradplot, gradplot3d, implicitplot, implicitplot3d, inequal, interactive, interactiveparams, intersectplot, listcontplot, listcontplot3d, listdensityplot, listplot, listplot3d, loglogplot, logplot, matrixplot, multiple, odeplot, pareto, plotcompare, pointplot, pointplot3d, polarplot, polygonplot, polygonplot3d, polyhedra_supported, polyhedraplot, rootlocus, semilogplot, setcolors, setoptions, setoptions3d, shadebetween, spacecurve, sparsematrixplot, surfdata, textplot, textplot3d, tubeplot]

(2)

alpha := <seq(0..10,evalf(10/50))>:
beta := <seq(0..10,evalf(10/50))>:

excelfile:= FileTools:-JoinPath(["C:","Users","aimer","OneDrive","Desktop","Msc Thesis","Maple ref","N_data.xlsx"]);

"C:\Users\aimer\OneDrive\Desktop\Msc Thesis\Maple ref\N_data.xlsx"

(3)

NN:=ImportMatrix(excelfile,source=Excel):

_rtable[36893489576445216036]

(4)

#?ImportMatrix;

#NN:=ImportMatrix(matlabData, source=MATLAB);

#currentdir();

"C:\Users\aimer\OneDrive\Desktop\Msc Thesis\Maple ref"

(5)

 

contourplot(ArrayInterpolation([beta,alpha],NN,[x,y]),x=0..10,y=0..10,contours=[0]);

Error, (in CurveFitting:-ArrayInterpolation) invalid input: xvalues are not specified correctly

 

#?listcontplot

 

Download test1.mw

I do not know what is the problem with Using ImportMatrix. N_data.xlsx is in the same directory.

Any comment would be appreciated.

restart;

with(CurveFitting)

[ArrayInterpolation, BSpline, BSplineCurve, Interactive, LeastSquares, Lowess, PolynomialInterpolation, RationalInterpolation, Spline, ThieleInterpolation]

(1)

with(plots);

[animate, animate3d, animatecurve, arrow, changecoords, complexplot, complexplot3d, conformal, conformal3d, contourplot, contourplot3d, coordplot, coordplot3d, densityplot, display, dualaxisplot, fieldplot, fieldplot3d, gradplot, gradplot3d, implicitplot, implicitplot3d, inequal, interactive, interactiveparams, intersectplot, listcontplot, listcontplot3d, listdensityplot, listplot, listplot3d, loglogplot, logplot, matrixplot, multiple, odeplot, pareto, plotcompare, pointplot, pointplot3d, polarplot, polygonplot, polygonplot3d, polyhedra_supported, polyhedraplot, rootlocus, semilogplot, setcolors, setoptions, setoptions3d, shadebetween, spacecurve, sparsematrixplot, surfdata, textplot, textplot3d, tubeplot]

(2)

alpha := <seq(0..10,evalf(10/50))>:
beta := <seq(0..10,evalf(10/50))>:

excelfile:= FileTools:-JoinPath(["C: ","Users","aimer","OneDrive","Desktop","Msc Thesis","Maple ref","N_data.xlsx"]);

"C: \Users\aimer\OneDrive\Desktop\Msc Thesis\Maple ref\N_data.xlsx"

(3)

NN:=ImportMatrix(excelfile,source=Excel);

Error, (in ImportMatrix) file or directory does not exist: C: \Users\aimer\OneDrive\Desktop\Msc Thesis\Maple ref\N_data.xlsx

 

?ImportMatrix;

#NN:=ImportMatrix(matlabData, source=MATLAB);

currentdir();

"C:\Users\aimer\OneDrive\Desktop\Msc Thesis\Maple ref"

(4)

?Joinpath

 

Download test1.mw

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