1 years, 24 days

## termination issue...

Maple 2021

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

## matrix index out of range...

Maple
 > restart;
 > A:= Matrix();
 (1)
 > i_choices:= [seq(i,i=0..10,1)];
 (2)
 > j_choices:= [seq(j,j=0..10,1)];
 (3)
 > for i in i_choices do:  for j in j_choices do:    A[i,j] :=i+j;    print(A[i,j]);  od: od;

## How to calculate this symbolically?...

Maple

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]);
 (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);
 (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);
 (3)
 >

## ArrayInterpolation in contourplot...

Maple 2021

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

 > restart;
 > with(CurveFitting)
 (1)
 > with(plots);
 (2)
 > alpha := : beta := :
 > excelfile:= FileTools:-JoinPath(["C:","Users","aimer","OneDrive","Desktop","Msc Thesis","Maple ref","N_data.xlsx"]);
 (3)
 > NN:=ImportMatrix(excelfile,source=Excel):
 (4)
 > #?ImportMatrix;
 > #NN:=ImportMatrix(matlabData, source=MATLAB);
 > #currentdir();
 (5)
 >
 > contourplot(ArrayInterpolation([beta,alpha],NN,[x,y]),x=0..10,y=0..10,contours=[0]);
 > #?listcontplot
 >

## ImportMatrix problem...

Maple 2021

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)
 (1)
 > with(plots);
 (2)
 > alpha := : beta := :
 > excelfile:= FileTools:-JoinPath(["C: ","Users","aimer","OneDrive","Desktop","Msc Thesis","Maple ref","N_data.xlsx"]);
 (3)
 > NN:=ImportMatrix(excelfile,source=Excel);
 > ?ImportMatrix;
 > #NN:=ImportMatrix(matlabData, source=MATLAB);
 > currentdir();
 (4)
 > ?Joinpath
 >