I have not been successful with that. However I am pasting below some of the relevant entries from the worksheet.

> Eigenvalues(m1, datatype = float);
%;
Error, (in Vector[column]) unable to store 'RootOf(_Z^18-_Z^17-74*_Z^16-112*_Z^15+1614*_Z^14+5078*_Z^13-8738*_Z^12-52734*_Z^11-21395*_Z^10+192597*_Z^9+267275*_Z^8-177151*_Z^7-570256*_Z^6-215198*_Z^5+283353*_Z^4+231649*_Z^3+6692*_Z^2-31056*_Z-5256, index = 1)' when datatype=float

> Eigenvalues(m1)

will result in a vector containing entries of the type: Root of (an 18 degree polynomial).

@mehdi jafari 

Thanks MJ for offering to help. I am reuploading.

example.mw

@mehdi jafari example.mw

Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/example.mw .

Download example.mw