george2079
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 Apr 1 revised Efficiently strip off coefficients in front of variables? deleted 22 characters in body Apr 1 revised Efficiently strip off coefficients in front of variables? added 3 characters in body Apr 1 answered Efficiently strip off coefficients in front of variables? Apr 1 revised Matrix indexed by one number added 275 characters in body Apr 1 revised Matrix indexed by one number added 2 characters in body Apr 1 answered Matrix indexed by one number Apr 1 revised Importing a VCF file with quoted-printable encoding deleted 23 characters in body Apr 1 revised Importing a VCF file with quoted-printable encoding added 20 characters in body Apr 1 revised Importing a VCF file with quoted-printable encoding added 100 characters in body Apr 1 answered Importing a VCF file with quoted-printable encoding Apr 1 comment Importing a VCF file with quoted-printable encoding you should make that an answer. (The CharacterEncoding option throws a warning for me by the way, but it works. possible version issue) Apr 1 revised Different interpretation of system of equations added 81 characters in body Apr 1 revised Different interpretation of system of equations added 126 characters in body Apr 1 answered Different interpretation of system of equations Apr 1 comment Importing a VCF file with quoted-printable encoding What you have are two 3-byte utf-8 characters. Looking here: ansell-uebersetzungen.com/gbuni.html you can look up the same characters as in your screen dump. Apr 1 comment Different interpretation of system of equations is it guaranteed 0z and y->x as you read the docs. Mar 31 comment How I can get faster code for computing a fractional integral? your attempt to decompose integral of sums is not as general as needed. For example u1[x] is a sum of two terms but 8 u1[x] has head Times. that said I'm puzzled why thats needed at all, but notice INT[-\[Alpha], u1[x], x, Assumptions...] returns almost immediately while INT[-\[Alpha], 8 u1[x], x, Assumptions...] does not. Mar 31 comment NDSolve and matrix formulation do not produce the same result. Why and which is more precise? i guess noise is not the right word. Your matrix solution shows a high frequency component not present in the direct solution. I'm guessing some error - compare your matrix with my h66 i think they should be the same although I didn't check that part of your code. Mar 31 revised NDSolve and matrix formulation do not produce the same result. Why and which is more precise? added 35 characters in body